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OpenStudy (candy13106):
determine whether each matrix has an inverse. if an inverse exists, find it.
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OpenStudy (candy13106):
|dw:1453936663804:dw|
OpenStudy (candy13106):
i got the determinant to equal -1
OpenStudy (anonymous):
if the determinant of a matrix is zero then it has no inverse.
OpenStudy (anonymous):
good now same steps as the last one
OpenStudy (candy13106):
ok but i got -1 so its an inverse
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OpenStudy (anonymous):
then what is |dw:1453936880995:dw|
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