Teaching MPPSC Assistant Professor Mock Test Series 2025 Engineering Mathematics Linear Algebra Determinants
Given that A = [aij] is a square matrix of order 3 × 3 and |A| = -7, then the value of \(\sum {_{i = 1}^3} \) ai2 Ai2, where Aij denotes the cofactor of element aij is :
1
7
2
-7
3
0
4
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