Let A is a square matrix of order 3, such that det(A)=a(M11+M12+M13) a – InterviewSolution

1.	Let A is a square matrix of order 3, such that det(A)=a(M11+M12+M13) and det(5A)=b(M11+M12+M13). Then which of the following is correct. (where Mij is minor of ith row and jth column element)
Answer» Let $A$ is a square matrix of order $3$ , such that $det (A) = a (M_{11} + M_{12} + M_{13})$ and $det (5 A) = b (M_{11} + M_{12} + M_{13})$ . Then which of the following is correct. (where $M_{i j}$ is minor of $i^{t h}$ row and $j^{t h}$ column element)

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