Question

IF A= $\left[\begin{array}{ccc}3&-4\\-1&2\end{array}\right]$ SUCH THAT BA=I WHERE THE I IS UNIT MATRIX OF ORDER 2×2 FIND THE MATRIX B
CORRECT ANSWER WILL BE GIVEN BRAINLIEST
WORST ANSWERS ARE STRICTLY NOT ALLOWED

Answer 1

Step-by-step explanation:

Solution----->

1) Plzzz see the attachment .

2) ATQ, BA = I

We know that , A⁻¹ A = I

So , B = A⁻¹

So , we find A⁻¹ , in order to find , B ,

3) For this we first find cofactors of A , and then find A⁻¹ , by applying below formula

A⁻¹ = adjA / | A |

4) Then , B = A⁻¹