Please given the hand-written explanation for this question, it's hard to understand with text-type. (Also, for (2), it's det(A^-2*A^T, not A-2A^T))

1. (20 points) Let 1 1 -1 -1 0 2 0 -1 A = DC 0 1 2 WH 0 0 1 (1) (10 points) Show A is invertible and find A-1. (2) (10 points) Compute det(A-2 AT)