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Question text
Sea la matriz <span class="nolink">«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»A«/mi»«mo»=«/mo»«mi»#A«/mi»«/math»</span> donde a es un parámetro. Marca la respuesta correcta: <br /><br /><br />
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One or multiple answers?
Multiple answers allowed
One answer only
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Number the choices?
a., b., c., ...
A., B., C., ...
1., 2., 3., ...
i., ii., iii., ...
I., II., III., ...
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Algorithm
Choice 1
Answer
Si a = 0 entonces el rangode A es 1
Grade
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Feedback
Fíjate que aunque a sea igual a 0, podemos hallar un menor de orden 2 con determinante diferente de 0, #menor
Choice 2
Answer
Si a es diferente de 1, entonces el rango de A es 3
Grade
None
100%
90%
83.33333%
80%
75%
70%
66.66667%
60%
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33.33333%
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16.66667%
14.28571%
12.5%
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Feedback
Para que una matriz tenga rango 3 se debe poder encontrar un menor de orden 3 (de dimensión 3x3) con determinante diferente de 0, pero la matriz A sólo tiene 2 filas!
Choice 3
Answer
El rango de A es 2 para qualquier valor de a
Grade
None
100%
90%
83.33333%
80%
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70%
66.66667%
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40%
33.33333%
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16.66667%
14.28571%
12.5%
11.11111%
10%
5%
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Feedback
Muy bien, sea cuál sea el valor de a, hay un menor de orden 2 con determinante diferente de 0, #menor.
Choice 4
Answer
Si a = 1, entonces el rango de A es 1
Grade
None
100%
90%
83.33333%
80%
75%
70%
66.66667%
60%
50%
40%
33.33333%
30%
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20%
16.66667%
14.28571%
12.5%
11.11111%
10%
5%
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-16.66667%
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-90%
-100%
Feedback
Fíjate que aunque a sea igual a 1, podemos encontrar un menor de orden 2 con determinante diferente de 0, #menor.
Choice 5
Answer
Grade
None
100%
90%
83.33333%
80%
75%
70%
66.66667%
60%
50%
40%
33.33333%
30%
25%
20%
16.66667%
14.28571%
12.5%
11.11111%
10%
5%
-5%
-10%
-11.11111%
-12.5%
-14.28571%
-16.66667%
-20%
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-33.33333%
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-66.66667%
-70%
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-83.33333%
-90%
-100%
Feedback
Choice 6
Answer
Grade
None
100%
90%
83.33333%
80%
75%
70%
66.66667%
60%
50%
40%
33.33333%
30%
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20%
16.66667%
14.28571%
12.5%
11.11111%
10%
5%
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-12.5%
-14.28571%
-16.66667%
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Feedback
Choice 7
Answer
Grade
None
100%
90%
83.33333%
80%
75%
70%
66.66667%
60%
50%
40%
33.33333%
30%
25%
20%
16.66667%
14.28571%
12.5%
11.11111%
10%
5%
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-11.11111%
-12.5%
-14.28571%
-16.66667%
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-66.66667%
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-83.33333%
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Feedback
Combined feedback
For any correct response
For any partially correct response
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Show the number of correct responses once the question has finished
For any incorrect response
Settings for multiple tries
Penalty for each incorrect try
100%
50%
33.33333%
25%
20%
10%
0%
Hint 1
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Hint 2
Hint text
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Created / last saved
Created
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Admin User
on
Wednesday, 12 June 2013, 1:11 PM
Last saved
by
Admin User
on
Wednesday, 12 June 2013, 1:11 PM
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