Question

I have no idea how to do this!
Find the products AB and BA to determine whether B is the multiplicative inverse of A.

Answer 1

A=

Answer 2

B=

Answer 3

@ganeshie8 ?

Answer 4

if AB=BA = I, then we can say B is the multiplicative inverse of A

Answer 5

so, lets find AB, and BA
and see if we get I

Answer 6

A. B = A-1

B. B ≠ A-1