Failed to connect to MySQL: Access denied for user 'examnext_online'@'localhost' (using password: YES) Let `A=([1,-1,1],[2,1,-3],[1,1,1])` and `10B=([4,2,2],[-5,0,alpha],[1,-2,3])`If B is the inverse of matrix A, then `alpha` is - Sarthaks eConnect
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Let `A=([1,-1,1],[2,1,-3],[1,1,1])` and `10B=([4,2,2],[-5,0,alpha],[1,-2,3])`  If B is the inverse of matrix A, then `alpha` is

Let `A=([1,-1,1],[2,1,-3],[1,1,1])` and `10B=([4,2,2],[-5,0,alpha],[1,-2,3])`  If B is the inverse of matrix A, then `alpha` is

A.

5
B.

-1

C.

2

D.

-2

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