Let A = [a_ ij ] = bmatrix _5 128 & _4 5 _5 8 & _4 25 bmatrix . If A_ ij is the co-factor of a_ ij , C_ ij =...

Question

Let A = [a_ ij ] = bmatrix _5 128 & _4 5 _5 8 & _4 25 bmatrix . If A_ ij is the co-factor of a_ ij , C_ ij = _ k=1 ^ 2 a_ ik A_ jk , 1 i, j 2, and C = [C_ ij ], then 8|C| is equal to :

Accepted Answer

(3)

JEE Main 2025 Mathematics question

Solution