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Question text
Sea A*=#Aamp la matriz ampliada de un sistema. Marca las afirmaciones que son ciertas:<br /><br />En el espacio inferior, desarrolla el estudio del rango de la matriz asociada y del rango de la matriz ampliada para razonar las afirmaciones marcadas. <br />
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a., b., c., ...
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1., 2., 3., ...
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Choice 1
Answer
se trata de un sistema de #n ecuaciones con #n incógnitas
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Feedback
Muy bien.<br />
Choice 2
Answer
el sistema es incompatible
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None
100%
90%
83.33333%
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70%
66.66667%
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33.33333%
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Feedback
Atención, para ser sistema incompatible, el rango de la matriz asociada debe ser diferente del rango de la matriz ampliada.
Choice 3
Answer
el sistema es compatible indeterminado
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%
12.5%
11.11111%
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Feedback
Muy bien.<br />
Choice 4
Answer
el sistema es compatible determinado
Grade
None
100%
90%
83.33333%
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66.66667%
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Feedback
Atención, para ser compatible determinado el rango de la matriz asociada debe ser igual al rango de la ampliada y igual al número de incógnitas.
Choice 5
Answer
si el rango de A es menor que #n, entonces ya podemos afirmar que el rango de la matriz ampliada es menor que #n
Grade
None
100%
90%
83.33333%
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66.66667%
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Feedback
Fíjate que el rango de la matriz ampliada puede ser #n, aunque el rango de A no lo sea. Si un menor formado por columnas de A y la nueva columna de A<sup>* </sup> tiene determinante diferente de 0, entonces el rango de la ampliada será #n. Por ejemplo, considera A= #A y A<sup>* </sup> =#Aamp.<br />
Choice 6
Answer
Grade
None
100%
90%
83.33333%
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75%
70%
66.66667%
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33.33333%
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Feedback
Choice 7
Answer
Grade
None
100%
90%
83.33333%
80%
75%
70%
66.66667%
60%
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33.33333%
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16.66667%
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Feedback
Choice 8
Answer
Grade
None
100%
90%
83.33333%
80%
75%
70%
66.66667%
60%
50%
40%
33.33333%
30%
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16.66667%
14.28571%
12.5%
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Feedback
Combined feedback
For any correct response
For any partially correct response
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Penalty for each incorrect try
100%
50%
33.33333%
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0%
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Wednesday, 12 June 2013, 1:11 PM
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Wednesday, 12 June 2013, 1:11 PM
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