Question

If A and B are non-singular matrixes of same order which of the following is true
a) (AB)‐¹=B-¹A-¹
b) (AB)‐¹=A-¹B-¹
C) (AB)‐¹=AB
d) (AB)-¹=BA

Answer 1

option a

select any two matrix of same order. check the conditions only (a) will be verified