b. Mat-Electricidad Santiago Sur ELEC. MA. S04. c. Valorizando expresiones algebraicas. Variación de la resistencia con la temperatura. La bobina de un transformador confeccionada de alambre de «math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mo»#«/mo»«mi»m«/mi»«/math», «math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mo»#«/mo»«mi»t«/mi»«mi»e«/mi»«mi»x«/mi»«mn»1«/mn»«/math», «math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mo»#«/mo»«mi»t«/mi»«mi»e«/mi»«mi»x«/mi»«mn»2«/mn»«/math», «math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mo»#«/mo»«mi»t«/mi»«mi»e«/mi»«mi»x«/mi»«mn»3«/mn»«/math» ¿Qué valor toma su «math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mo»#«/mo»«mi»p«/mi»«/math»?

La variación de resistencia con la temperatura, está determinada por la siguiente expresión:

«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»r«/mi»«mi»f«/mi»«mo»=«/mo»«mi»r«/mi»«mi»i«/mi»«mo»§#183;«/mo»«mo»(«/mo»«mn»1«/mn»«mo»+«/mo»«mi»§#945;«/mi»«mo»§#183;«/mo»«mo»(«/mo»«mi»t«/mi»«mi»f«/mi»«mo»-«/mo»«mi»t«/mi»«mi»i«/mi»«mo»)«/mo»«mo»)«/mo»«/math»

Donde:

«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»r«/mi»«mi»f«/mi»«/math» resistencia final «math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mfenced open=¨[¨ close=¨]¨»«mi»§#937;«/mi»«/mfenced»«/math»

«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»r«/mi»«mi»i«/mi»«/math» resistencia inicial «math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mfenced open=¨[¨ close=¨]¨»«mi»§#937;«/mi»«/mfenced»«/math»

«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»t«/mi»«mi»f«/mi»«/math» temperatura final «math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mfenced open=¨[¨ close=¨]¨»«mrow»«mo»§#176;«/mo»«mi»C«/mi»«/mrow»«/mfenced»«/math»

«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»t«/mi»«mi»i«/mi»«/math» temperatura inicial «math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mfenced open=¨[¨ close=¨]¨»«mrow»«mo»§#176;«/mo»«mi»C«/mi»«/mrow»«/mfenced»«/math»

«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»§#945;«/mi»«/math» coeficiente térmico «math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mfenced open=¨[¨ close=¨]¨»«mfrac bevelled=¨true¨»«mn»1«/mn»«mrow»«mo»§#176;«/mo»«mi»C«/mi»«/mrow»«/mfrac»«/mfenced»«/math» para «math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mo»#«/mo»«mi»m«/mi»«/math» es «math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mo»#«/mo»«mi»a«/mi»«mo» «/mo»«mo» «/mo»«mfenced open=¨[¨ close=¨]¨»«mfrac bevelled=¨true¨»«mn»1«/mn»«mrow»«mo»§#176;«/mo»«mi»C«/mi»«/mrow»«/mfrac»«/mfenced»«/math»

Observaciones:

En el desarrollo considera mínimo 4 decimales y en el resultado final escribir dos decimales aproximados.

Ingresa la respuesta sin unidad con punto de separación.

Por ejemplo: 3,249 debes ingresar 3.25

]]>

La «math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mo»#«/mo»«mi»p«/mi»«/math», de acuerdo a los datos es:

«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mo»#«/mo»«mi»t«/mi»«mi»e«/mi»«mi»x«/mi»«mn»4«/mn»«/math»

«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mo»#«/mo»«mi»t«/mi»«mi»e«/mi»«mi»x«/mi»«mn»5«/mn»«/math»

«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mo»#«/mo»«mi»t«/mi»«mi»e«/mi»«mi»x«/mi»«mn»6«/mn»«/math»

«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mo»#«/mo»«mi»t«/mi»«mi»e«/mi»«mi»x«/mi»«mn»7«/mn»«/math»

«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mo»#«/mo»«mi»t«/mi»«mi»e«/mi»«mi»x«/mi»«mn»8«/mn»«/math»

«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mo»#«/mo»«mi»t«/mi»«mi»e«/mi»«mi»x«/mi»«mn»9«/mn»«/math»

«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mo»#«/mo»«mi»t«/mi»«mi»e«/mi»«mi»x«/mi»«mn»10«/mn»«/math»

«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mo»#«/mo»«mi»t«/mi»«mi»e«/mi»«mi»x«/mi»«mn»11«/mn»«/math»

«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mo»#«/mo»«mi»t«/mi»«mi»e«/mi»«mi»x«/mi»«mn»12«/mn»«/math»

«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mo»#«/mo»«mi»t«/mi»«mi»e«/mi»«mi»x«/mi»«mn»13«/mn»«/math»

«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mo»#«/mo»«mi»t«/mi»«mi»e«/mi»«mi»x«/mi»«mn»14«/mn»«/math»

La «math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mo»#«/mo»«mi»p«/mi»«/math» es «math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mo»#«/mo»«mi»s«/mi»«mi»o«/mi»«mi»l«/mi»«mo»§#32;«/mo»«/math»«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mo»#«/mo»«mi»p«/mi»«mn»1«/mn»«/math»

]]> 1 .3333333 0 0 #sol ¡Muy Bien! tu respuesta

]]> -]]> <question><wirisCasSession><![CDATA[<session lang="es" version="2.0"><library closed="false"><mtext style="color:#ffc800" xml:lang="es">variables</mtext><group><maction actiontype="comment"><comment><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>ti</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mn>5</mn><mo>,</mo><mn>25</mn><mo>)</mo></math></comment></maction><maction actiontype="comment"><comment><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>tf</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mn>30</mn><mo>,</mo><mn>110</mn><mo>)</mo></math></comment></maction><maction actiontype="comment"><comment><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>ri</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mn>3</mn><mo>,</mo><mn>50</mn><mo>)</mo></math></comment></maction><maction actiontype="comment"><comment><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>rf</mi><mo>=</mo><mi>aleatorio</mi><mfenced><mrow><mn>55</mn><mo>,</mo><mn>133</mn></mrow></mfenced></math></comment></maction><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>m</mi><mo>=</mo><mi>aleatorio</mi><mo>{</mo><mo>"</mo><mi>cobre</mi><mo>"</mo><mo>,</mo><mo>"</mo><mi>aluminio</mi><mo>"</mo><mo>,</mo><mo>"</mo><mi>acero</mi><mo>"</mo><mo>}</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><apply><csymbol definitionURL="http://www.wiris.com/XML/csymbol">if</csymbol><mrow><mi>m</mi><mo>=</mo><mo>"</mo><mi>cobre</mi><mo>"</mo></mrow><mrow><mi>a</mi><mo>=</mo><mn>0</mn><mo>.</mo><mn>0038</mn></mrow></apply></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"/></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><apply><csymbol definitionURL="http://www.wiris.com/XML/csymbol">if</csymbol><mrow><mi>m</mi><mo>=</mo><mo>"</mo><mi>aluminio</mi><mo>"</mo></mrow><mrow><mi>a</mi><mo>=</mo><mn>0</mn><mo>.</mo><mn>003</mn></mrow></apply></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><apply><csymbol definitionURL="http://www.wiris.com/XML/csymbol">if</csymbol><mrow><mi>m</mi><mo>=</mo><mo>"</mo><mi>acero</mi><mo>"</mo></mrow><mrow><mi>a</mi><mo>=</mo><mn>0</mn><mo>.</mo><mn>005</mn></mrow></apply></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"/></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>p</mi><mo>=</mo><mi>aleatorio</mi><mo>{</mo><mo>"</mo><mi>temperatura</mi><mo> </mo><mi>inicial</mi><mo>"</mo><mo>,</mo><mo>"</mo><mi>temperatura</mi><mo> </mo><mi>final</mi><mo>"</mo><mo>,</mo><mo>"</mo><mi>resistencia</mi><mo> </mo><mi>inicial</mi><mo>"</mo><mo>,</mo><mo>"</mo><mi>resistencia</mi><mo> </mo><mi>final</mi><mo>"</mo><mo>}</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><apply><csymbol definitionURL="http://www.wiris.com/XML/csymbol">if</csymbol><mrow><mi>p</mi><mo>=</mo><mo>"</mo><mi>temperatura</mi><mo> </mo><mi>inicial</mi><mo>"</mo></mrow><mtable><mtr><mtd><apply><csymbol definitionURL="http://www.wiris.com/XML/csymbol">repeat</csymbol><mtable><mtr><mtd><mi>tf</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mn>30</mn><mo>,</mo><mn>110</mn><mo>)</mo></mtd></mtr><mtr><mtd><mi>ri</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mn>3</mn><mo>,</mo><mn>50</mn><mo>)</mo></mtd></mtr><mtr><mtd><mi>rf</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mn>51</mn><mo>,</mo><mn>135</mn><mo>)</mo></mtd></mtr><mtr><mtd><mi>h</mi><mo>=</mo><mfrac><mrow><mi>ri</mi><mo>+</mo><mi>a</mi><mo>*</mo><mi>ri</mi><mo>*</mo><mi>tf</mi><mo>-</mo><mi>rf</mi></mrow><mrow><mi>a</mi><mo>*</mo><mi>ri</mi></mrow></mfrac></mtd></mtr></mtable><mrow><mo>(</mo><mi>h</mi><mo>⩾</mo><mn>5</mn><mo>∧</mo><mi>h</mi><mo>⩽</mo><mn>29</mn><mo>)</mo></mrow></apply></mtd></mtr><mtr><mtd><mi>b1</mi><mo>=</mo><mi>sustituir_cadena</mi><mo>(</mo><mo>"</mo><mi>mide</mi><mo> </mo><mi>una</mi><mo> </mo><mi>resistencia</mi><mo> </mo><mi>inicial</mi><mo> </mo><mi>de</mi><mo> </mo><mo>#</mo><mn>1</mn><mo> </mo><csymbol definitionURL="http://.../units/ohm">Ω</csymbol><mo>"</mo><mo>,</mo><mi>ri</mi><mo>)</mo></mtd></mtr><mtr><mtd><mi>b2</mi><mo>=</mo><mi>sustituir_cadena</mi><mo>(</mo><mo>"</mo><mi>su</mi><mo> </mo><mi>temperatura</mi><mo> </mo><mi>final</mi><mo> </mo><mi>alcanza</mi><mo> </mo><mo>#</mo><mn>1</mn><mo> </mo><mo>°</mo><mi>C</mi><mo>"</mo><mo>,</mo><mi>tf</mi><mo>)</mo></mtd></mtr><mtr><mtd><mi>b3</mi><mo>=</mo><mi>sustituir_cadena</mi><mo>(</mo><mo>"</mo><mi>su</mi><mo> </mo><mi>resistencia</mi><mo> </mo><mi>final</mi><mo> </mo><mi>es</mi><mo> </mo><mi>de</mi><mo> </mo><mo>#</mo><mn>1</mn><mo> </mo><csymbol definitionURL="http://.../units/ohm">Ω</csymbol><mo>"</mo><mo>,</mo><mi>rf</mi><mo>)</mo></mtd></mtr><mtr><mtd><mi>b</mi><mo>=</mo><mi>ri</mi><mo>*</mo><mi>a</mi></mtd></mtr><mtr><mtd><mi>c</mi><mo>=</mo><mi>b</mi><mo>*</mo><mi>tf</mi></mtd></mtr><mtr><mtd><mi>d</mi><mo>=</mo><mi>ri</mi><mo>+</mo><mi>c</mi></mtd></mtr><mtr><mtd><mi>e</mi><mo>=</mo><mi>d</mi><mo>-</mo><mi>rf</mi></mtd></mtr><mtr><mtd><mi>f</mi><mo>=</mo><mfrac><mi>e</mi><mi>b</mi></mfrac></mtd></mtr><mtr><mtd><mi>b4</mi><mo>=</mo><mi>sustituir_cadena</mi><mo>(</mo><mo>"</mo><mi>rf</mi><mo> </mo><mo>=</mo><mo> </mo><mi>ri</mi><mo>*</mo><mfenced><mrow><mn>1</mn><mo>+</mo><mi>α</mi><mo>*</mo><mfenced><mrow><mi>tf</mi><mo>-</mo><mi>ti</mi></mrow></mfenced></mrow></mfenced><mo>"</mo><mo>)</mo></mtd></mtr><mtr><mtd><mi>b5</mi><mo>=</mo><mi>sustituir_cadena</mi><mo>(</mo><mo>"</mo><mo>#</mo><mn>1</mn><mo>=</mo><mo>#</mo><mn>2</mn><mo>*</mo><mfenced><mrow><mn>1</mn><mo>+</mo><mo>#</mo><mn>3</mn><mo>*</mo><mfenced><mrow><mo>#</mo><mn>4</mn><mo>-</mo><mi>ti</mi></mrow></mfenced></mrow></mfenced><mo>"</mo><mo>,</mo><mi>rf</mi><mo>,</mo><mi>ri</mi><mo>,</mo><mi>a</mi><mo>,</mo><mi>tf</mi><mo>)</mo></mtd></mtr><mtr><mtd><mi>b6</mi><mo>=</mo><mi>sustituir_cadena</mi><mo>(</mo><mo>"</mo><mo>#</mo><mn>1</mn><mo>=</mo><mo>#</mo><mn>2</mn><mo>*</mo><mn>1</mn><mo>+</mo><mo>#</mo><mn>3</mn><mo>*</mo><mo>#</mo><mn>4</mn><mo>*</mo><mo>(</mo><mo>#</mo><mn>5</mn><mo>-</mo><mi>ti</mi><mo>)</mo><mo>"</mo><mo>,</mo><mi>rf</mi><mo>,</mo><mi>ri</mi><mo>,</mo><mi>ri</mi><mo>,</mo><mi>a</mi><mo>,</mo><mi>tf</mi><mo>)</mo></mtd></mtr><mtr><mtd><mi>b7</mi><mo>=</mo><mi>sustituir_cadena</mi><mo>(</mo><mo>"</mo><mo>#</mo><mn>1</mn><mo>=</mo><mo>#</mo><mn>2</mn><mo>+</mo><mo>#</mo><mn>3</mn><mo>*</mo><mo>(</mo><mo>#</mo><mn>4</mn><mo>-</mo><mi>ti</mi><mo>)</mo><mo>"</mo><mo>,</mo><mi>rf</mi><mo>,</mo><mi>ri</mi><mo>,</mo><mi>b</mi><mo>,</mo><mi>tf</mi><mo>)</mo></mtd></mtr><mtr><mtd><mi>b8</mi><mo>=</mo><mi>sustituir_cadena</mi><mo>(</mo><mo>"</mo><mo>#</mo><mn>1</mn><mo>=</mo><mo>#</mo><mn>2</mn><mo>+</mo><mo>#</mo><mn>3</mn><mo>*</mo><mo>#</mo><mn>4</mn><mo>-</mo><mo>#</mo><mn>5</mn><mo>*</mo><mi>ti</mi><mo>)</mo><mo>"</mo><mo>,</mo><mi>rf</mi><mo>,</mo><mi>ri</mi><mo>,</mo><mi>b</mi><mo>,</mo><mi>tf</mi><mo>,</mo><mi>b</mi><mo>)</mo></mtd></mtr><mtr><mtd><mi>b9</mi><mo>=</mo><mi>sustituir_cadena</mi><mo>(</mo><mo>"</mo><mo>#</mo><mn>1</mn><mo>=</mo><mo>#</mo><mn>2</mn><mo>+</mo><mo>#</mo><mn>3</mn><mo>-</mo><mo>#</mo><mn>4</mn><mo>*</mo><mi>ti</mi><mo>)</mo><mo>"</mo><mo>,</mo><mi>rf</mi><mo>,</mo><mi>ri</mi><mo>,</mo><mi>c</mi><mo>,</mo><mi>b</mi><mo>)</mo></mtd></mtr><mtr><mtd><mi>b10</mi><mo>=</mo><mi>sustituir_cadena</mi><mo>(</mo><mo>"</mo><mo>#</mo><mn>1</mn><mo>=</mo><mo>#</mo><mn>2</mn><mo>-</mo><mo>#</mo><mn>3</mn><mo>*</mo><mi>ti</mi><mo>)</mo><mo>"</mo><mo>,</mo><mi>rf</mi><mo>,</mo><mi>d</mi><mo>,</mo><mi>b</mi><mo>)</mo></mtd></mtr><mtr><mtd><mi>b11</mi><mo>=</mo><mi>sustituir_cadena</mi><mo>(</mo><mo>"</mo><mo>#</mo><mn>1</mn><mo>*</mo><mi>ti</mi><mo>=</mo><mo>#</mo><mn>2</mn><mo>-</mo><mo>#</mo><mn>3</mn><mo>)</mo><mo>"</mo><mo>,</mo><mi>b</mi><mo>,</mo><mi>d</mi><mo>,</mo><mi>rf</mi><mo>)</mo></mtd></mtr><mtr><mtd><mi>b12</mi><mo>=</mo><mi>sustituir_cadena</mi><mo>(</mo><mo>"</mo><mo>#</mo><mn>1</mn><mo>*</mo><mi>ti</mi><mo>=</mo><mo>#</mo><mn>2</mn><mo>)</mo><mo>"</mo><mo>,</mo><mi>b</mi><mo>,</mo><mi>e</mi><mo>)</mo></mtd></mtr><mtr><mtd/></mtr><mtr><mtd><mi>b13</mi><mo>=</mo><mi>sustituir_cadena</mi><mo>(</mo><mo>"</mo><mi>ti</mi><mo>=</mo><mfrac><mrow><mo>#</mo><mn>1</mn></mrow><mrow><mo>#</mo><mn>2</mn></mrow></mfrac><mo>"</mo><mo>,</mo><mi>e</mi><mo>,</mo><mi>b</mi><mo>)</mo></mtd></mtr><mtr><mtd><mi>b14</mi><mo>=</mo><mi>sustituir_cadena</mi><mo>(</mo><mo>"</mo><mi>ti</mi><mo>=</mo><mo>#</mo><mn>1</mn><mo>"</mo><mo>,</mo><mi>f</mi><mo>)</mo></mtd></mtr><mtr><mtd><mi>sol</mi><mo>=</mo><mi>redondear</mi><mo>(</mo><mi>f</mi><mo>*</mo><mn>100</mn><mo>)</mo><mo>/</mo><mn>100</mn><mo>.</mo></mtd></mtr><mtr><mtd><mi>p1</mi><mo>=</mo><mo>"</mo><mo>°</mo><mi>C</mi><mo>"</mo></mtd></mtr></mtable></apply></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><apply><csymbol definitionURL="http://www.wiris.com/XML/csymbol">if</csymbol><mrow><mi>p</mi><mo>=</mo><mo>"</mo><mi>temperatura</mi><mo> </mo><mi>final</mi><mo>"</mo></mrow><mtable><mtr><mtd><apply><csymbol definitionURL="http://www.wiris.com/XML/csymbol">repeat</csymbol><mtable><mtr><mtd><mi>ti</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mn>5</mn><mo>,</mo><mn>25</mn><mo>)</mo></mtd></mtr><mtr><mtd><mi>ri</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mn>3</mn><mo>,</mo><mn>50</mn><mo>)</mo></mtd></mtr><mtr><mtd><mi>rf</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mn>51</mn><mo>,</mo><mn>135</mn><mo>)</mo></mtd></mtr><mtr><mtd><mi>h</mi><mo>=</mo><mfrac><mrow><mi>rf</mi><mo>-</mo><mi>ri</mi><mo>+</mo><mi>ri</mi><mo>*</mo><mi>a</mi><mo>*</mo><mi>ti</mi></mrow><mrow><mi>a</mi><mo>*</mo><mi>ri</mi></mrow></mfrac></mtd></mtr></mtable><mrow><mo>(</mo><mi>h</mi><mo>⩾</mo><mn>30</mn><mo>∧</mo><mi>h</mi><mo>⩽</mo><mn>110</mn><mo>)</mo></mrow></apply></mtd></mtr><mtr><mtd><mi>b1</mi><mo>=</mo><mi>sustituir_cadena</mi><mo>(</mo><mo>"</mo><mi>mide</mi><mo> </mo><mi>una</mi><mo> </mo><mi>resistencia</mi><mo> </mo><mi>inicial</mi><mo> </mo><mi>de</mi><mo> </mo><mo>#</mo><mn>1</mn><mo> </mo><csymbol definitionURL="http://.../units/ohm">Ω</csymbol><mo>"</mo><mo>,</mo><mi>ri</mi><mo>)</mo></mtd></mtr><mtr><mtd><mi>b2</mi><mo>=</mo><mi>sustituir_cadena</mi><mo>(</mo><mo>"</mo><mi>su</mi><mo> </mo><mi>temperatura</mi><mo> </mo><mi>inicial</mi><mo> </mo><mi>mide</mi><mo> </mo><mo>#</mo><mn>1</mn><mo> </mo><mo>°</mo><mi>C</mi><mo>"</mo><mo>,</mo><mi>ti</mi><mo>)</mo></mtd></mtr><mtr><mtd><mi>b3</mi><mo>=</mo><mi>sustituir_cadena</mi><mo>(</mo><mo>"</mo><mi>su</mi><mo> </mo><mi>resistencia</mi><mo> </mo><mi>final</mi><mo> </mo><mi>es</mi><mo> </mo><mi>de</mi><mo> </mo><mo>#</mo><mn>1</mn><mo> </mo><csymbol definitionURL="http://.../units/ohm">Ω</csymbol><mo>"</mo><mo>,</mo><mi>rf</mi><mo>)</mo></mtd></mtr><mtr><mtd><mi>b</mi><mo>=</mo><mi>ri</mi><mo>*</mo><mi>a</mi></mtd></mtr><mtr><mtd><mi>c</mi><mo>=</mo><mi>b</mi><mo>*</mo><mi>ti</mi></mtd></mtr><mtr><mtd><mi>d</mi><mo>=</mo><mi>ri</mi><mo>-</mo><mi>c</mi></mtd></mtr><mtr><mtd><mi>e</mi><mo>=</mo><mi>rf</mi><mo>-</mo><mi>d</mi></mtd></mtr><mtr><mtd><mi>f</mi><mo>=</mo><mfrac><mi>e</mi><mi>b</mi></mfrac></mtd></mtr><mtr><mtd><mi>b4</mi><mo>=</mo><mi>sustituir_cadena</mi><mo>(</mo><mo>"</mo><mi>rf</mi><mo>=</mo><mi>ri</mi><mo>*</mo><mfenced><mrow><mn>1</mn><mo>+</mo><mi>α</mi><mo>*</mo><mfenced><mrow><mi>tf</mi><mo>-</mo><mi>ti</mi></mrow></mfenced></mrow></mfenced><mo>"</mo><mo>)</mo></mtd></mtr><mtr><mtd><mi>b5</mi><mo>=</mo><mi>sustituir_cadena</mi><mo>(</mo><mo>"</mo><mo>#</mo><mn>1</mn><mo>=</mo><mo>#</mo><mn>2</mn><mo>*</mo><mfenced><mrow><mn>1</mn><mo>+</mo><mo>#</mo><mn>3</mn><mo>*</mo><mfenced><mrow><mi>tf</mi><mo>-</mo><mo>#</mo><mn>4</mn></mrow></mfenced></mrow></mfenced><mo>"</mo><mo>,</mo><mi>rf</mi><mo>,</mo><mi>ri</mi><mo>,</mo><mi>a</mi><mo>,</mo><mi>ti</mi><mo>)</mo></mtd></mtr><mtr><mtd><mi>b6</mi><mo>=</mo><mi>sustituir_cadena</mi><mo>(</mo><mo>"</mo><mo>#</mo><mn>1</mn><mo>=</mo><mo>#</mo><mn>2</mn><mo>*</mo><mn>1</mn><mo>+</mo><mo>#</mo><mn>3</mn><mo>*</mo><mo>#</mo><mn>4</mn><mo>*</mo><mo>(</mo><mi>tf</mi><mo>-</mo><mo>#</mo><mn>5</mn><mo>)</mo><mo>"</mo><mo>,</mo><mi>rf</mi><mo>,</mo><mi>ri</mi><mo>,</mo><mi>ri</mi><mo>,</mo><mi>a</mi><mo>,</mo><mi>ti</mi><mo>)</mo></mtd></mtr><mtr><mtd><mi>b7</mi><mo>=</mo><mi>sustituir_cadena</mi><mo>(</mo><mo>"</mo><mo>#</mo><mn>1</mn><mo>=</mo><mo>#</mo><mn>2</mn><mo>+</mo><mo>#</mo><mn>3</mn><mo>*</mo><mo>(</mo><mi>tf</mi><mo>-</mo><mo>#</mo><mn>4</mn><mo>)</mo><mo>"</mo><mo>,</mo><mi>rf</mi><mo>,</mo><mi>ri</mi><mo>,</mo><mi>b</mi><mo>,</mo><mi>ti</mi><mo>)</mo></mtd></mtr><mtr><mtd><mi>b8</mi><mo>=</mo><mi>sustituir_cadena</mi><mo>(</mo><mo>"</mo><mo>#</mo><mn>1</mn><mo>=</mo><mo>#</mo><mn>2</mn><mo>+</mo><mo>#</mo><mn>3</mn><mo>*</mo><mi>tf</mi><mo>-</mo><mo>#</mo><mn>4</mn><mo>*</mo><mo>#</mo><mn>5</mn><mo>"</mo><mo>,</mo><mi>rf</mi><mo>,</mo><mi>ri</mi><mo>,</mo><mi>b</mi><mo>,</mo><mi>b</mi><mo>,</mo><mi>ti</mi><mo>)</mo></mtd></mtr><mtr><mtd><mi>b9</mi><mo>=</mo><mi>sustituir_cadena</mi><mo>(</mo><mo>"</mo><mo>#</mo><mn>1</mn><mo>=</mo><mo>#</mo><mn>2</mn><mo>+</mo><mo>#</mo><mn>3</mn><mo>*</mo><mi>tf</mi><mo>-</mo><mo>#</mo><mn>4</mn><mo>"</mo><mo>,</mo><mi>rf</mi><mo>,</mo><mi>ri</mi><mo>,</mo><mi>b</mi><mo>,</mo><mi>c</mi><mo>)</mo></mtd></mtr><mtr><mtd><mi>b10</mi><mo>=</mo><mi>sustituir_cadena</mi><mo>(</mo><mo>"</mo><mo>#</mo><mn>1</mn><mo>=</mo><mo>#</mo><mn>2</mn><mo>+</mo><mo>#</mo><mn>3</mn><mo>*</mo><mi>tf</mi><mo>"</mo><mo>,</mo><mi>rf</mi><mo>,</mo><mi>d</mi><mo>,</mo><mi>b</mi><mo>)</mo></mtd></mtr><mtr><mtd><mi>b11</mi><mo>=</mo><mi>sustituir_cadena</mi><mo>(</mo><mo>"</mo><mo>#</mo><mn>1</mn><mo>*</mo><mi>tf</mi><mo>=</mo><mo>#</mo><mn>2</mn><mo>-</mo><mo>#</mo><mn>3</mn><mo>"</mo><mo>,</mo><mi>b</mi><mo>,</mo><mi>rf</mi><mo>,</mo><mi>d</mi><mo>)</mo></mtd></mtr><mtr><mtd><mi>b12</mi><mo>=</mo><mi>sustituir_cadena</mi><mo>(</mo><mo>"</mo><mo>#</mo><mn>1</mn><mo>*</mo><mi>tf</mi><mo>=</mo><mo>#</mo><mn>2</mn><mo>"</mo><mo>,</mo><mi>b</mi><mo>,</mo><mi>e</mi><mo>)</mo></mtd></mtr><mtr><mtd/></mtr><mtr><mtd><mi>b13</mi><mo>=</mo><mi>sustituir_cadena</mi><mo>(</mo><mo>"</mo><mi>tf</mi><mo>=</mo><mfrac><mrow><mo>#</mo><mn>1</mn></mrow><mrow><mo>#</mo><mn>2</mn></mrow></mfrac><mo>"</mo><mo>,</mo><mi>e</mi><mo>,</mo><mi>b</mi><mo>)</mo></mtd></mtr><mtr><mtd><mi>b14</mi><mo>=</mo><mi>sustituir_cadena</mi><mo>(</mo><mo>"</mo><mi>tf</mi><mo>=</mo><mo>#</mo><mn>1</mn><mo>"</mo><mo>,</mo><mi>f</mi><mo>)</mo></mtd></mtr><mtr><mtd><mi>sol</mi><mo>=</mo><mi>redondear</mi><mo>(</mo><mi>f</mi><mo>*</mo><mn>100</mn><mo>)</mo><mo>/</mo><mn>100</mn><mo>.</mo></mtd></mtr><mtr><mtd><mi>p1</mi><mo>=</mo><mo>"</mo><mo>°</mo><mi>C</mi><mo>"</mo></mtd></mtr></mtable></apply></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><apply><csymbol definitionURL="http://www.wiris.com/XML/csymbol">if</csymbol><mrow><mi>p</mi><mo>=</mo><mo>"</mo><mi>resistencia</mi><mo> </mo><mi>inicial</mi><mo>"</mo></mrow><mtable><mtr><mtd><apply><csymbol definitionURL="http://www.wiris.com/XML/csymbol">repeat</csymbol><mtable><mtr><mtd><mi>ti</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mn>5</mn><mo>,</mo><mn>25</mn><mo>)</mo></mtd></mtr><mtr><mtd><mi>tf</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mn>30</mn><mo>,</mo><mn>110</mn><mo>)</mo></mtd></mtr><mtr><mtd><mi>rf</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mn>51</mn><mo>,</mo><mn>135</mn><mo>)</mo></mtd></mtr><mtr><mtd><mi>h</mi><mo>=</mo><mfrac><mi>rf</mi><mrow><mn>1</mn><mo>+</mo><mi>a</mi><mo>*</mo><mo>(</mo><mi>tf</mi><mo>-</mo><mi>ti</mi><mo>)</mo></mrow></mfrac></mtd></mtr></mtable><mrow><mo>(</mo><mi>h</mi><mo>⩾</mo><mn>3</mn><mo>∧</mo><mi>h</mi><mo>⩽</mo><mn>50</mn><mo>)</mo></mrow></apply></mtd></mtr><mtr><mtd><mi>b1</mi><mo>=</mo><mi>sustituir_cadena</mi><mo>(</mo><mo>"</mo><mi>su</mi><mo> </mo><mi>temperatura</mi><mo> </mo><mi>inicial</mi><mo> </mo><mi>mide</mi><mo> </mo><mo>#</mo><mn>1</mn><mo> </mo><mo>°</mo><mi>C</mi><mo>"</mo><mo>,</mo><mi>ti</mi><mo>)</mo><mo> </mo></mtd></mtr><mtr><mtd><mi>b2</mi><mo>=</mo><mi>sustituir_cadena</mi><mo>(</mo><mo>"</mo><mo> </mo><mi>su</mi><mo> </mo><mi>temperatura</mi><mo> </mo><mi>final</mi><mo> </mo><mi>alcanza</mi><mo> </mo><mo>#</mo><mn>1</mn><mo> </mo><mo>°</mo><mi>C</mi><mo>"</mo><mo>,</mo><mi>tf</mi><mo>)</mo></mtd></mtr><mtr><mtd><mi>b3</mi><mo>=</mo><mi>sustituir_cadena</mi><mo>(</mo><mo>"</mo><mi>su</mi><mo> </mo><mi>resistencia</mi><mo> </mo><mi>final</mi><mo> </mo><mi>es</mi><mo> </mo><mi>de</mi><mo> </mo><mo>#</mo><mn>1</mn><mo> </mo><csymbol definitionURL="http://.../units/ohm">Ω</csymbol><mo>"</mo><mo>,</mo><mi>rf</mi><mo>)</mo></mtd></mtr><mtr><mtd><mi>b</mi><mo>=</mo><mi>tf</mi><mo>-</mo><mi>ti</mi></mtd></mtr><mtr><mtd><mi>c</mi><mo>=</mo><mi>a</mi><mo>*</mo><mi>b</mi></mtd></mtr><mtr><mtd><mi>d</mi><mo>=</mo><mn>1</mn><mo>+</mo><mi>c</mi></mtd></mtr><mtr><mtd><mi>f</mi><mo>=</mo><mi>rf</mi><mo>/</mo><mi>d</mi></mtd></mtr><mtr><mtd><mi>b4</mi><mo>=</mo><mi>sustituir_cadena</mi><mo>(</mo><mo>"</mo><mi>ri</mi><mo>=</mo><mfrac><mi>rf</mi><mrow><mn>1</mn><mo>+</mo><mi>α</mi><mo>*</mo><mfenced><mrow><mi>tf</mi><mo>-</mo><mi>ti</mi></mrow></mfenced></mrow></mfrac><mo>"</mo><mo>)</mo></mtd></mtr><mtr><mtd><mi>b5</mi><mo>=</mo><mi>sustituir_cadena</mi><mo>(</mo><mo>"</mo><mi>ri</mi><mo>=</mo><mfrac><mrow><mo>#</mo><mn>1</mn></mrow><mrow><mn>1</mn><mo>+</mo><mo>#</mo><mn>2</mn><mo>*</mo><mfenced><mrow><mo>#</mo><mn>3</mn><mo>-</mo><mo>#</mo><mn>4</mn></mrow></mfenced></mrow></mfrac><mo>"</mo><mo>,</mo><mi>rf</mi><mo>,</mo><mi>a</mi><mo>,</mo><mi>tf</mi><mo>,</mo><mi>ti</mi><mo>)</mo></mtd></mtr><mtr><mtd><mi>b6</mi><mo>=</mo><mi>sustituir_cadena</mi><mo>(</mo><mo>"</mo><mi>ri</mi><mo>=</mo><mfrac><mrow><mo>#</mo><mn>1</mn></mrow><mrow><mn>1</mn><mo>+</mo><mo>#</mo><mn>2</mn><mo>*</mo><mo>#</mo><mn>3</mn></mrow></mfrac><mo>"</mo><mo>,</mo><mi>rf</mi><mo>,</mo><mi>a</mi><mo>,</mo><mi>b</mi><mo>)</mo></mtd></mtr><mtr><mtd><mi>b7</mi><mo>=</mo><mi>sustituir_cadena</mi><mo>(</mo><mo>"</mo><mi>ri</mi><mo>=</mo><mfrac><mrow><mo>#</mo><mn>1</mn></mrow><mrow><mn>1</mn><mo>+</mo><mo>#</mo><mn>2</mn></mrow></mfrac><mo>"</mo><mo>,</mo><mi>rf</mi><mo>,</mo><mi>c</mi><mo>)</mo></mtd></mtr><mtr><mtd><mi>b8</mi><mo>=</mo><mi>sustituir_cadena</mi><mo>(</mo><mo>"</mo><mi>ri</mi><mo>=</mo><mfrac><mrow><mo>#</mo><mn>1</mn></mrow><mrow><mo>#</mo><mn>2</mn></mrow></mfrac><mo>"</mo><mo>,</mo><mi>rf</mi><mo>,</mo><mi>d</mi><mo>)</mo></mtd></mtr><mtr><mtd><mi>b9</mi><mo>=</mo><mi>sustituir_cadena</mi><mo>(</mo><mo>"</mo><mi>ri</mi><mo>=</mo><mo>#</mo><mn>1</mn><mo>"</mo><mo>,</mo><mi>f</mi><mo>)</mo></mtd></mtr><mtr><mtd><mi>b10</mi><mo>=</mo><mo>"</mo><mo> </mo><mo>"</mo></mtd></mtr><mtr><mtd><mi>b11</mi><mo>=</mo><mo>"</mo><mo> </mo><mo>"</mo></mtd></mtr><mtr><mtd><mi>b12</mi><mo>=</mo><mo>"</mo><mo> </mo><mo>"</mo></mtd></mtr><mtr><mtd><mi>b13</mi><mo>=</mo><mo>"</mo><mo> </mo><mo>"</mo></mtd></mtr><mtr><mtd><mi>b14</mi><mo>=</mo><mo>"</mo><mo> </mo><mo>"</mo></mtd></mtr><mtr><mtd><mi>p1</mi><mo>=</mo><mo>"</mo><csymbol definitionURL="http://.../units/ohm">Ω</csymbol><mo>"</mo></mtd></mtr><mtr><mtd><mi>sol</mi><mo>=</mo><mi>redondear</mi><mo>(</mo><mi>f</mi><mo>*</mo><mn>100</mn><mo>)</mo><mo>/</mo><mn>100</mn><mo>.</mo></mtd></mtr><mtr><mtd><mi>p1</mi><mo>=</mo><mo>"</mo><csymbol definitionURL="http://.../units/ohm">Ω</csymbol><mo>"</mo></mtd></mtr></mtable></apply></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><apply><csymbol definitionURL="http://www.wiris.com/XML/csymbol">if</csymbol><mrow><mi>p</mi><mo>=</mo><mo>"</mo><mi>resistencia</mi><mo> </mo><mi>final</mi><mo>"</mo></mrow><mtable><mtr><mtd><apply><csymbol definitionURL="http://www.wiris.com/XML/csymbol">repeat</csymbol><mtable><mtr><mtd><mi>tf</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mn>30</mn><mo>,</mo><mn>110</mn><mo>)</mo></mtd></mtr><mtr><mtd><mi>ri</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mn>3</mn><mo>,</mo><mn>50</mn><mo>)</mo></mtd></mtr><mtr><mtd><mi>ti</mi><mo>=</mo><mi>aleatorio</mi><mo>(</mo><mn>5</mn><mo>,</mo><mn>25</mn><mo>)</mo></mtd></mtr><mtr><mtd><mi>h</mi><mo>=</mo><mi>ri</mi><mo>*</mo><mfenced><mrow><mn>1</mn><mo>+</mo><mi>a</mi><mo>*</mo><mfenced><mrow><mi>tf</mi><mo>-</mo><mi>ti</mi></mrow></mfenced></mrow></mfenced></mtd></mtr></mtable><mrow><mo>(</mo><mi>h</mi><mo>⩾</mo><mn>55</mn><mo>∧</mo><mi>h</mi><mo>⩽</mo><mn>133</mn><mo>)</mo></mrow></apply></mtd></mtr><mtr><mtd><mi>b1</mi><mo>=</mo><mi>sustituir_cadena</mi><mo>(</mo><mo>"</mo><mi>su</mi><mo> </mo><mi>temperatura</mi><mo> </mo><mi>inicial</mi><mo> </mo><mi>mide</mi><mo> </mo><mo>#</mo><mn>1</mn><mo> </mo><mo>°</mo><mi>C</mi><mo>"</mo><mo>,</mo><mi>ti</mi><mo>)</mo><mo> </mo></mtd></mtr><mtr><mtd><mi>b2</mi><mo>=</mo><mi>sustituir_cadena</mi><mo>(</mo><mo>"</mo><mo> </mo><mi>su</mi><mo> </mo><mi>temperatura</mi><mo> </mo><mi>final</mi><mo> </mo><mi>alcanza</mi><mo> </mo><mo>#</mo><mn>1</mn><mo> </mo><mo>°</mo><mi>C</mi><mo>"</mo><mo>,</mo><mi>tf</mi><mo>)</mo></mtd></mtr><mtr><mtd><mi>b3</mi><mo>=</mo><mi>sustituir_cadena</mi><mo>(</mo><mo>"</mo><mi>mide</mi><mo> </mo><mi>una</mi><mo> </mo><mi>resistencia</mi><mo> </mo><mi>inicial</mi><mo> </mo><mi>de</mi><mo> </mo><mo>#</mo><mn>1</mn><mo> </mo><csymbol definitionURL="http://.../units/ohm">Ω</csymbol><mo>"</mo><mo>,</mo><mi>ri</mi><mo>)</mo></mtd></mtr><mtr><mtd><mi>b</mi><mo>=</mo><mi>tf</mi><mo>-</mo><mi>ti</mi></mtd></mtr><mtr><mtd><mi>c</mi><mo>=</mo><mi>a</mi><mo>*</mo><mi>b</mi></mtd></mtr><mtr><mtd><mi>d</mi><mo>=</mo><mn>1</mn><mo>+</mo><mi>c</mi></mtd></mtr><mtr><mtd><mi>f</mi><mo>=</mo><mi>ri</mi><mo>*</mo><mi>d</mi></mtd></mtr><mtr><mtd><mi>b4</mi><mo>=</mo><mi>sustituir_cadena</mi><mo>(</mo><mo>"</mo><mi>rf</mi><mo>=</mo><mi>ri</mi><mo>*</mo><mfenced><mrow><mn>1</mn><mo>+</mo><mi>α</mi><mo>*</mo><mfenced><mrow><mi>tf</mi><mo>-</mo><mi>ti</mi></mrow></mfenced></mrow></mfenced><mo>"</mo><mo>)</mo></mtd></mtr><mtr><mtd><mi>b5</mi><mo>=</mo><mi>sustituir_cadena</mi><mo>(</mo><mo>"</mo><mi>rf</mi><mo>=</mo><mo>#</mo><mn>1</mn><mo>*</mo><mfenced><mrow><mn>1</mn><mo>+</mo><mo>#</mo><mn>2</mn><mo>*</mo><mfenced><mrow><mo>#</mo><mn>3</mn><mo>-</mo><mo>#</mo><mn>4</mn></mrow></mfenced></mrow></mfenced><mo>"</mo><mo>,</mo><mi>ri</mi><mo>,</mo><mi>a</mi><mo>,</mo><mi>tf</mi><mo>,</mo><mi>ti</mi><mo>)</mo></mtd></mtr><mtr><mtd><mi>b6</mi><mo>=</mo><mi>sustituir_cadena</mi><mo>(</mo><mo>"</mo><mi>rf</mi><mo>=</mo><mo>#</mo><mn>1</mn><mo>*</mo><mfenced><mrow><mn>1</mn><mo>+</mo><mo>#</mo><mn>2</mn><mo>*</mo><mo>#</mo><mn>3</mn></mrow></mfenced><mo>"</mo><mo>,</mo><mi>ri</mi><mo>,</mo><mi>a</mi><mo>,</mo><mi>b</mi><mo>)</mo></mtd></mtr><mtr><mtd><mi>b7</mi><mo>=</mo><mi>sustituir_cadena</mi><mo>(</mo><mo>"</mo><mi>rf</mi><mo>=</mo><mo>#</mo><mn>1</mn><mo>*</mo><mfenced><mrow><mn>1</mn><mo>+</mo><mo>#</mo><mn>2</mn></mrow></mfenced><mo>"</mo><mo>,</mo><mi>ri</mi><mo>,</mo><mi>c</mi><mo>)</mo></mtd></mtr><mtr><mtd><mi>b8</mi><mo>=</mo><mi>sustituir_cadena</mi><mo>(</mo><mo>"</mo><mi>rf</mi><mo>=</mo><mo>#</mo><mn>1</mn><mo>*</mo><mo>#</mo><mn>2</mn><mo>"</mo><mo>,</mo><mi>ri</mi><mo>,</mo><mi>d</mi><mo>)</mo></mtd></mtr><mtr><mtd><mi>b9</mi><mo>=</mo><mi>sustituir_cadena</mi><mo>(</mo><mo>"</mo><mi>rf</mi><mo>=</mo><mo>#</mo><mn>1</mn><mo>"</mo><mo>,</mo><mi>f</mi><mo>)</mo></mtd></mtr><mtr><mtd><mi>b10</mi><mo>=</mo><mo>"</mo><mo> </mo><mo>"</mo></mtd></mtr><mtr><mtd><mi>b11</mi><mo>=</mo><mo>"</mo><mo> </mo><mo>"</mo></mtd></mtr><mtr><mtd><mi>b12</mi><mo>=</mo><mo>"</mo><mo> </mo><mo>"</mo></mtd></mtr><mtr><mtd><mi>b13</mi><mo>=</mo><mo>"</mo><mo> </mo><mo>"</mo></mtd></mtr><mtr><mtd><mi>b14</mi><mo>=</mo><mo>"</mo><mo> </mo><mo>"</mo></mtd></mtr><mtr><mtd><mi>p1</mi><mo>=</mo><mo>"</mo><csymbol definitionURL="http://.../units/ohm">Ω</csymbol><mo>"</mo></mtd></mtr><mtr><mtd><mi>f</mi><mo>=</mo><mi>ri</mi><mo>*</mo><mfenced><mrow><mn>1</mn><mo>+</mo><mi>a</mi><mo>*</mo><mfenced><mrow><mi>tf</mi><mo>-</mo><mi>ti</mi></mrow></mfenced></mrow></mfenced></mtd></mtr><mtr><mtd><mi>sol</mi><mo>=</mo><mi>redondear</mi><mo>(</mo><mi>f</mi><mo>*</mo><mn>100</mn><mo>)</mo><mo>/</mo><mn>100</mn><mo>.</mo></mtd></mtr></mtable></apply></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>tex1</mi><mo>=</mo><mi>sustituir_cadena</mi><mo>(</mo><mo>"</mo><mo>#</mo><mn>1</mn><mo>"</mo><mo>,</mo><mi>b1</mi><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>tex2</mi><mo>=</mo><mi>sustituir_cadena</mi><mo>(</mo><mo>"</mo><mo>#</mo><mn>1</mn><mo>"</mo><mo>,</mo><mi>b2</mi><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>tex3</mi><mo>=</mo><mi>sustituir_cadena</mi><mo>(</mo><mo>"</mo><mo>#</mo><mn>1</mn><mo>"</mo><mo>,</mo><mi>b3</mi><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>tex4</mi><mo>=</mo><mi>sustituir_cadena</mi><mo>(</mo><mo>"</mo><mo>#</mo><mn>1</mn><mo>"</mo><mo>,</mo><mi>b4</mi><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>tex5</mi><mo>=</mo><mi>sustituir_cadena</mi><mo>(</mo><mo>"</mo><mo>#</mo><mn>1</mn><mo>"</mo><mo>,</mo><mi>b5</mi><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>tex6</mi><mo>=</mo><mi>sustituir_cadena</mi><mo>(</mo><mo>"</mo><mo>#</mo><mn>1</mn><mo>"</mo><mo>,</mo><mi>b6</mi><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>tex7</mi><mo>=</mo><mi>sustituir_cadena</mi><mo>(</mo><mo>"</mo><mo>#</mo><mn>1</mn><mo>"</mo><mo>,</mo><mi>b7</mi><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>tex8</mi><mo>=</mo><mi>sustituir_cadena</mi><mo>(</mo><mo>"</mo><mo>#</mo><mn>1</mn><mo>"</mo><mo>,</mo><mi>b8</mi><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>tex9</mi><mo>=</mo><mi>sustituir_cadena</mi><mo>(</mo><mo>"</mo><mo>#</mo><mn>1</mn><mo>"</mo><mo>,</mo><mi>b9</mi><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>tex10</mi><mo>=</mo><mi>sustituir_cadena</mi><mo>(</mo><mo>"</mo><mo>#</mo><mn>1</mn><mo>"</mo><mo>,</mo><mi>b10</mi><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>tex11</mi><mo>=</mo><mi>sustituir_cadena</mi><mo>(</mo><mo>"</mo><mo>#</mo><mn>1</mn><mo>"</mo><mo>,</mo><mi>b11</mi><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>tex12</mi><mo>=</mo><mi>sustituir_cadena</mi><mo>(</mo><mo>"</mo><mo>#</mo><mn>1</mn><mo>"</mo><mo>,</mo><mi>b12</mi><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>tex13</mi><mo>=</mo><mi>sustituir_cadena</mi><mo>(</mo><mo>"</mo><mo>#</mo><mn>1</mn><mo>"</mo><mo>,</mo><mi>b13</mi><mo>)</mo></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>tex14</mi><mo>=</mo><mi>sustituir_cadena</mi><mo>(</mo><mo>"</mo><mo>#</mo><mn>1</mn><mo>"</mo><mo>,</mo><mi>b14</mi><mo>)</mo></math></input></command></group></library><group><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>m</mi></math></input><output><math xmlns="http://www.w3.org/1998/Math/MathML"><ms>el</ms><mo> </mo><ms>tungsteno</ms></math></output></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>p</mi></math></input><output><math xmlns="http://www.w3.org/1998/Math/MathML"><ms>temperatura</ms><mo> </mo><ms>inicial</ms></math></output></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>p1</mi></math></input><output><math xmlns="http://www.w3.org/1998/Math/MathML"><mo>°</mo><ms>C</ms></math></output></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>tf</mi></math></input><output><math xmlns="http://www.w3.org/1998/Math/MathML"><mn>82</mn></math></output></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>ti</mi></math></input><output><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>ti</mi></math></output></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>rf</mi></math></input><output><math xmlns="http://www.w3.org/1998/Math/MathML"><mn>55</mn></math></output></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>ri</mi></math></input><output><math xmlns="http://www.w3.org/1998/Math/MathML"><mn>41</mn></math></output></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>a</mi></math></input><output><math xmlns="http://www.w3.org/1998/Math/MathML"><mn>0.0045</mn></math></output></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>b</mi></math></input><output><math xmlns="http://www.w3.org/1998/Math/MathML"><mn>0.1845</mn></math></output></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>c</mi></math></input><output><math xmlns="http://www.w3.org/1998/Math/MathML"><mn>15.129</mn></math></output></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>d</mi></math></input><output><math xmlns="http://www.w3.org/1998/Math/MathML"><mn>56.129</mn></math></output></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>h</mi></math></input><output><math xmlns="http://www.w3.org/1998/Math/MathML"><mn>6.1192</mn></math></output></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>tex1</mi></math></input><output><math xmlns="http://www.w3.org/1998/Math/MathML"><ms>mide</ms><mo> </mo><ms>una</ms><mo> </mo><ms>resistencia</ms><mo> </mo><ms>inicial</ms><mo> </mo><ms>de</ms><mo> </mo><mn>41</mn><mo> </mo><csymbol definitionURL="http://.../units/ohm">Ω</csymbol></math></output></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>tex2</mi></math></input><output><math xmlns="http://www.w3.org/1998/Math/MathML"><ms>su</ms><mo> </mo><ms>temperatura</ms><mo> </mo><ms>final</ms><mo> </mo><ms>alcanza</ms><mo> </mo><mn>82</mn><mo> </mo><mo>°</mo><ms>C</ms></math></output></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>tex3</mi></math></input><output><math xmlns="http://www.w3.org/1998/Math/MathML"><ms>su</ms><mo> </mo><ms>resistencia</ms><mo> </mo><ms>final</ms><mo> </mo><ms>es</ms><mo> </mo><ms>de</ms><mo> </mo><mn>55</mn><mo> </mo><csymbol definitionURL="http://.../units/ohm">Ω</csymbol></math></output></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>tex4</mi></math></input><output><math xmlns="http://www.w3.org/1998/Math/MathML"><ms>rf</ms><mo> </mo><mo>=</mo><mo> </mo><ms>ri</ms><mo>*</mo><mfenced><mrow><mn>1</mn><mo>+</mo><mi>α</mi><mo>*</mo><mfenced><mrow><mi>tf</mi><mo>-</mo><mi>ti</mi></mrow></mfenced></mrow></mfenced></math></output></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>tex5</mi></math></input><output><math xmlns="http://www.w3.org/1998/Math/MathML"><mn>55</mn><mo>=</mo><mn>41</mn><mo>*</mo><mfenced><mrow><mn>1</mn><mo>+</mo><mn>0.0045</mn><mo>*</mo><mfenced><mrow><mn>82</mn><mo>-</mo><mi>ti</mi></mrow></mfenced></mrow></mfenced></math></output></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>tex6</mi></math></input><output><math xmlns="http://www.w3.org/1998/Math/MathML"><mn>55</mn><mo>=</mo><mn>41</mn><mo>*</mo><ms>1</ms><mo>+</mo><mn>41</mn><mo>*</mo><mn>0.0045</mn><mo>*</mo><ms>(</ms><mn>82</mn><mo>-</mo><ms>ti)</ms></math></output></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>tex7</mi></math></input><output><math xmlns="http://www.w3.org/1998/Math/MathML"><mn>55</mn><mo>=</mo><mn>41</mn><mo>+</mo><mn>0.1845</mn><mo>*</mo><ms>(</ms><mn>82</mn><mo>-</mo><ms>ti)</ms></math></output></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>tex8</mi></math></input><output><math xmlns="http://www.w3.org/1998/Math/MathML"><mn>55</mn><mo>=</mo><mn>41</mn><mo>+</mo><mn>0.1845</mn><mo>*</mo><mn>82</mn><mo>-</mo><mn>0.1845</mn><mo>*</mo><ms>ti)</ms></math></output></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>tex9</mi></math></input><output><math xmlns="http://www.w3.org/1998/Math/MathML"><mn>55</mn><mo>=</mo><mn>41</mn><mo>+</mo><mn>15.129</mn><mo>-</mo><mn>0.1845</mn><mo>*</mo><ms>ti)</ms></math></output></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>tex10</mi></math></input><output><math xmlns="http://www.w3.org/1998/Math/MathML"><mn>55</mn><mo>=</mo><mn>56.129</mn><mo>-</mo><mn>0.1845</mn><mo>*</mo><ms>ti)</ms></math></output></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>tex11</mi></math></input><output><math xmlns="http://www.w3.org/1998/Math/MathML"><mn>0.1845</mn><mo>*</mo><ms>ti</ms><mo>=</mo><mn>56.129</mn><mo>-</mo><mn>55</mn><ms>)</ms></math></output></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>tex12</mi></math></input><output><math xmlns="http://www.w3.org/1998/Math/MathML"><mn>0.1845</mn><mo>*</mo><ms>ti</ms><mo>=</mo><mn>1.129</mn><ms>)</ms></math></output></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>tex13</mi></math></input><output><math xmlns="http://www.w3.org/1998/Math/MathML"><ms>ti</ms><mo>=</mo><mfrac><mn>1.129</mn><mn>0.1845</mn></mfrac></math></output></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>tex14</mi></math></input><output><math xmlns="http://www.w3.org/1998/Math/MathML"><ms>ti</ms><mo>=</mo><mn>6.1192</mn></math></output></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>sol</mi></math></input><output><math xmlns="http://www.w3.org/1998/Math/MathML"><mn>6.12</mn></math></output></command></group><group><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"/></input></command></group></session>]]></wirisCasSession><correctAnswers><correctAnswer>#sol</correctAnswer><correctAnswer id="1" type="mathml"><![CDATA[<math xmlns="http://www.w3.org/1998/Math/MathML"><mo>-</mo></math>]]></correctAnswer></correctAnswers><assertions><assertion name="equivalent_all" correctAnswer="1"/><assertion name="syntax_expression"/><assertion name="equivalent_symbolic"/></assertions><options><option name="tolerance">10^(-3)</option><option name="relative_tolerance">true</option><option name="precision">4</option><option name="times_operator">·</option><option name="implicit_times_operator">false</option><option name="imaginary_unit">i</option></options><localData><data name="inputField">popupEditor</data><data name="gradeCompound">and</data><data name="gradeCompoundDistribution"></data><data name="casSession"/></localData></question>