If A= [a_{i j}] is a symmetric matrix of order 2 \times 2 such that |A|=-15 and c_{i j} represents the cofactor of a_{i j} then the value of a_{21} c_{12}+a_{22} c_{22} is

CUSAT 2022 BTech Solved Paper Shift 3

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If A=[aij] is a symmetric matrix of order 2×2 such that |A|=−15 and cij represents the cofactor of aij then the value of a21c12+a22c22 is

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