Q. 6

# If Aij

Answer :

Given determinant is a32 represents the element of 3rd row and 2nd column of the given determinant.

a32 = 5

Whereas A32 represents the element of co-factor matrix of the given determinant.

A32 is as-

A32 = (-1)3+2 = -(8-30) = 22

A32 = 22

a32.A32 = 5×22 = 110

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