Question

Select all statements below which are true for all invertible n×n matrices A and B

A. AB=BA
B. (In−A)(In+A)=In−A2
C. (A+B)(A−B)=A2−B2
D. A+In is invertible
E. A9B5 is invertible
F. (A+A−1)2=A2+A−2

Answer 1

B hopes this help and can you mark me as brainles pls

Answer 2

B is the answer hope this helps