Find the inverse of the matrix if it exists.

A

First calculate the determinant:

3*9 - (-2)*(-10)=27-20=7

determinant isn't 0 so we can find inverse

swap top left and bottom right then negate the other two:

9   2

10  3

divide whole thing by 1/determinant:

1/7 * [9   2]

      [10  3]

answer: he is 272195

step-by-step explanation: all you have to do is multiple 3535 and 77 and it equals 272195