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Per a calcular l'àrea tancada per la gràfica de <span class="nolink">«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»f«/mi»«mo»(«/mo»«mi»x«/mi»«mo»)«/mo»«mo»=«/mo»«mi»#f«/mi»«/math»</span> i l'eix de les abscisses en l'interval <span class="nolink">«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mfenced close=¨]¨ open=¨[¨»«mrow»«mi»#a«/mi»«mo»,«/mo»«mi»#c«/mi»«/mrow»«/mfenced»«/math»</span>cal resoldre:
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Choice 1
Answer
«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«msubsup»«mo»§#8747;«/mo»«mi»#a«/mi»«mi»#c«/mi»«/msubsup»«mi»#f«/mi»«mo»§nbsp;«/mo»«mi»dx«/mi»«mo»§nbsp;«/mo»«mi»i«/mi»«mo»§nbsp;«/mo»«mi»el«/mi»«mo»§nbsp;«/mo»«mi»resultat«/mi»«mo»§nbsp;«/mo»«mi»és«/mi»«mo»§nbsp;«/mo»«mi»#B«/mi»«/math»
Grade
None
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Feedback
Atenció, aquesta funció no és positiva en tot l'interval. Resolent aquesta integral l'àrea tancada en l'interval on la funció és negativa està restant a l'àrea tancada en l'interval on la funció és positiva i no estàs obtenint l'àrea total.<br />#p<br />
Choice 2
Answer
«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«msubsup»«mo»§#8747;«/mo»«mi»#a«/mi»«mi»#b«/mi»«/msubsup»«mi»#f«/mi»«mo»§nbsp;«/mo»«mi»dx«/mi»«mo»§nbsp;«/mo»«mo»-«/mo»«mo»§nbsp;«/mo»«msubsup»«mo»§#8747;«/mo»«mi»#b«/mi»«mi»#c«/mi»«/msubsup»«mi»#f«/mi»«mo»§nbsp;«/mo»«mi»dx«/mi»«mo»§nbsp;«/mo»«mo»§nbsp;«/mo»«mi»i«/mi»«mo»§nbsp;«/mo»«mi»el«/mi»«mo»§nbsp;«/mo»«mi»resultat«/mi»«mo»§nbsp;«/mo»«mi»és«/mi»«mo»§nbsp;«/mo»«mi»#A«/mi»«/math»
Grade
None
100%
90%
83.33333%
80%
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70%
66.66667%
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33.33333%
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16.66667%
14.28571%
12.5%
11.11111%
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Feedback
Molt bé.<br />
Choice 3
Answer
«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«msubsup»«mo»§#8747;«/mo»«mi»#a«/mi»«mi»#c«/mi»«/msubsup»«mi»#f«/mi»«mo»§nbsp;«/mo»«mi»dx«/mi»«mo»§nbsp;«/mo»«mi»i«/mi»«mo»§nbsp;«/mo»«mi»el«/mi»«mo»§nbsp;«/mo»«mi»resultat«/mi»«mo»§nbsp;«/mo»«mi»és«/mi»«mo»§nbsp;«/mo»«mi»#C«/mi»«/math»
Grade
None
100%
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83.33333%
80%
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70%
66.66667%
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33.33333%
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16.66667%
14.28571%
12.5%
11.11111%
10%
5%
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Feedback
Atenció, l'àrea no pot ser negativa.<br />
Choice 4
Answer
Grade
None
100%
90%
83.33333%
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70%
66.66667%
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33.33333%
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Feedback
Choice 5
Answer
Grade
None
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83.33333%
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66.66667%
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33.33333%
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Feedback
Choice 6
Answer
Grade
None
100%
90%
83.33333%
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70%
66.66667%
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33.33333%
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16.66667%
14.28571%
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11.11111%
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Feedback
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10%
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33.33333%
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Hint 1
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Hint 2
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Created
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Wednesday, 12 June 2013, 1:05 PM
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on
Wednesday, 12 June 2013, 1:05 PM
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