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Mathematics 12 Online
OpenStudy (candy13106):

determine whether each matrix has an inverse. if an inverse exists, find it.

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

OpenStudy (anonymous):

then what is |dw:1453936880995:dw|

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