Let A=[aij] and B=[bij] be two 3×3 real matrices such that bij=(3)(i+ – InterviewSolution

1.	Let A=[aij] and B=[bij] be two 3×3 real matrices such that bij=(3)(i+j−2)aji, where i,j=1,2,3. If the determinant of B is 81, then the determinant of A is :
Answer» Let $A = [a_{i j}]$ and $B = [b_{i j}]$ be two $3 \times 3$ real matrices such that $b_{i j} = (3)^{(i + j - 2)} a_{j i}$ , where $i, j = 1, 2, 3$ . If the determinant of $B$ is $81$ , then the determinant of $A$ is :

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