Let An=[aij]n×n be a (n×n) determinant with the following conditions – InterviewSolution

1.	Let An=[aij]n×n be a (n×n) determinant with the following conditionsaij=⎧⎪⎨⎪⎩9,i=j3,\|i−j\|=10,other wise⎫⎪⎬⎪⎭ then
Answer» Let $A_{n} = [a_{i j}]_{n \times n}$ be a $(n \times n)$ determinant with the following conditions $a_{i j} = ⎧ ⎪ ⎨ ⎪ ⎩ \begin{matrix} 9, & i = j 3, & \| i - j \| = 1 0, & other wise \end{matrix} ⎫ ⎪ ⎬ ⎪ ⎭$ then

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