CUET Mathematics - If A = bmatrix 1 & 2 & 3 \\ -4 & -5 & -2 bmatrix, B = bmatrix 2 & -3 \\ 4 & -5 \\ 2 & -1 bmatrix and BA = [b_ij], then (b_23 - b_31) is equal to | PYQs + Solutions | AfterBoards