SOLUTION: Is it B? I wantt to check my answer. Given matrix A and B both have dimensions 2 x 2 and are the inverse of one another what should be the following product? A · B A.

Algebra ->  Probability-and-statistics -> SOLUTION: Is it B? I wantt to check my answer. Given matrix A and B both have dimensions 2 x 2 and are the inverse of one another what should be the following product? A · B A.      Log On


   

Question 1161351: Is it B? I wantt to check my answer.

Given matrix A and B both have dimensions 2 x 2 and are the inverse of one another what should be the following product?

A · B
A.
B.
C.
D.

The question is provided in the link here: https://i.imgur.com/ZGZXAlP.png
Answer by MathLover1(20849) About Me  (Show Source):
You can put this solution on YOUR website!
yes, it is B
Given matrix A+and B+ are the inverse of one another, means B=A%5E-1
and A%2AA%5E-1=I => identity matrix is =matrix%282%2C2%2C1%2C0%2C0%2C1%29