Skip to main content
Editing a Embedded answers (Cloze) - math & science question by WIRIS
You have permission to :
Edit this question
General
Category
Default for System (16649)
Test-Lidia
Question name
Question text
<p>Sabendo-se que os vetores (#a, #b, #c) (#d, #e, #f) (#g, #h, #i) são uma base em <span class="nolink">«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«msup»«mi mathvariant=¨normal¨»§#8477;«/mi»«mn»3«/mn»«/msup»«/math»</span>, obtenha o vetor <em>x (#a1,#a2,#a3) </em>nessa base.</p> <div> </div> <div style="text-align: center;">({1:SA:=#u},{1:SA:=#v},{1:SA:=#w})</div> <div style="text-align: center;"> </div> <div style="text-align: center;">Expresse os resultados em número racionais.</div>
General feedback
<p style="text-align: justify;">A representação do vetor x (#a1,#a2,#a3) na base (#a, #b, #c) (#d, #e, #f) (#g, #h, #i) será dada por:</p> <p style="text-align: center;">«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mfenced open=¨[¨ close=¨]¨»«mtable»«mtr»«mtd»«msub»«mi»v«/mi»«mi»x«/mi»«/msub»«/mtd»«/mtr»«mtr»«mtd»«msub»«mi»v«/mi»«mi»y«/mi»«/msub»«/mtd»«/mtr»«mtr»«mtd»«msub»«mi»v«/mi»«mi»z«/mi»«/msub»«/mtd»«/mtr»«/mtable»«/mfenced»«mo»=«/mo»«msup»«mi»§#922;«/mi»«mrow»«mo»-«/mo»«mn»1«/mn»«/mrow»«/msup»«mfenced open=¨[¨ close=¨]¨»«mtable»«mtr»«mtd»«mo»#«/mo»«mi»a«/mi»«mn»1«/mn»«/mtd»«/mtr»«mtr»«mtd»«mo»#«/mo»«mi»a«/mi»«mn»2«/mn»«/mtd»«/mtr»«mtr»«mtd»«mo»#«/mo»«mi»a«/mi»«mn»3«/mn»«/mtd»«/mtr»«/mtable»«/mfenced»«mo»,«/mo»«mo»§#160;«/mo»«mtext»com§#160;«/mtext»«mi»§#922;«/mi»«mo»=«/mo»«mfenced open=¨[¨ close=¨]¨»«mtable»«mtr»«mtd»«mo»#«/mo»«mi»a«/mi»«/mtd»«mtd»«mo»#«/mo»«mi»b«/mi»«/mtd»«mtd»«mo»#«/mo»«mi»c«/mi»«/mtd»«/mtr»«mtr»«mtd»«mo»#«/mo»«mi»d«/mi»«/mtd»«mtd»«mo»#«/mo»«mi»e«/mi»«/mtd»«mtd»«mo»#«/mo»«mi»f«/mi»«/mtd»«/mtr»«mtr»«mtd»«mo»#«/mo»«mi»g«/mi»«/mtd»«mtd»«mo»#«/mo»«mi»h«/mi»«/mtd»«mtd»«mo»#«/mo»«mi»i«/mi»«/mtd»«/mtr»«/mtable»«/mfenced»«mo».«/mo»«/math»</p> <p style="text-align: justify;">«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»§#922;«/mi»«/math» é a matriz que representa a base proposta em <span class="nolink">«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«msup»«mi mathvariant=¨normal¨»§#8477;«/mi»«mn»3«/mn»«/msup»«/math», e «math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«msup»«mi»§#922;«/mi»«mrow»«mo»-«/mo»«mn»1«/mn»«/mrow»«/msup»«/math» é a sua inversa. </span></p> <p style="text-align: justify;"><span class="nolink">Portanto:</span></p> <p style="text-align: center;"> «math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mfenced open=¨[¨ close=¨]¨»«mtable»«mtr»«mtd»«msub»«mi»v«/mi»«mi»x«/mi»«/msub»«/mtd»«/mtr»«mtr»«mtd»«msub»«mi»v«/mi»«mi»y«/mi»«/msub»«/mtd»«/mtr»«mtr»«mtd»«msub»«mi»v«/mi»«mi»z«/mi»«/msub»«/mtd»«/mtr»«/mtable»«/mfenced»«mo»=«/mo»«mo»#«/mo»«mi»i«/mi»«mi»n«/mi»«mi»v«/mi»«mi»e«/mi»«mi»r«/mi»«mi»s«/mi»«mi»a«/mi»«mfenced open=¨[¨ close=¨]¨»«mtable»«mtr»«mtd»«mo»#«/mo»«mi»a«/mi»«mn»1«/mn»«/mtd»«/mtr»«mtr»«mtd»«mo»#«/mo»«mi»a«/mi»«mn»2«/mn»«/mtd»«/mtr»«mtr»«mtd»«mo»#«/mo»«mi»a«/mi»«mn»3«/mn»«/mtd»«/mtr»«/mtable»«/mfenced»«mo»=«/mo»«mfenced open=¨[¨ close=¨]¨»«mtable»«mtr»«mtd»«mo»#«/mo»«mi»u«/mi»«/mtd»«/mtr»«mtr»«mtd»«mo»#«/mo»«mi»v«/mi»«/mtd»«/mtr»«mtr»«mtd»«mo»#«/mo»«mi»w«/mi»«/mtd»«/mtr»«/mtable»«/mfenced»«/math»</p> <p style="text-align: left;">Sendo assim, a representação do vetor x (#a1,#a2,#a3) na base (#a, #b, #c) (#d, #e, #f) (#g, #h, #i) será dada por:</p> <p style="text-align: center;">«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mfenced»«mrow»«mo»#«/mo»«mi»u«/mi»«mo»,«/mo»«mo»#«/mo»«mi»v«/mi»«mo»,«/mo»«mo»#«/mo»«mi»w«/mi»«/mrow»«/mfenced»«/math»</p> <p> </p>
WIRIS variables
Algorithm
Settings for multiple tries
Penalty for each incorrect try
100%
50%
33.33333%
25%
20%
10%
0%
Hint 1
Hint text
Options
Clear incorrect responses
Show the number of correct responses
Hint 2
Hint text
Options
Clear incorrect responses
Show the number of correct responses
Created / last saved
Created
by
Admin User
on
Tuesday, 17 September 2013, 4:24 PM
Last saved
by
Admin User
on
Tuesday, 17 September 2013, 4:24 PM
There are required fields in this form marked
.