If A=[aij] is a matrix of order 2×2, such that |A| = - 15 and Cij rep – InterviewSolution

1.	If A=[aij] is a matrix of order 2×2, such that \|A\| = - 15 and Cij represents the cofactor of aij, then find a21C21+a22 C22.
Answer» If $A = [a_{i j}]$ is a matrix of order $2 \times 2$ , such that \|A\| = - 15 and $C_{i j}$ represents the cofactor of $a_{i j}$ , then find $a_{21} C_{21} + a_{22} C_{22} .$

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