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OpenStudy (anonymous):
help please? What are the determinate of the minor and the cofactor of a21 in this matrix? [11 3 7] [ 2 0 1] [13 4 4]
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OpenStudy (muhammad_nauman_umair):
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OpenStudy (muhammad_nauman_umair):
minor is determinant of [11 7 ] [13 4]
OpenStudy (muhammad_nauman_umair):
if (-1)^(2+1) i.e -1 is muliplied with minor we get co- factor
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