Question

Find the inverse of this matrix.Which answer option is correct?A,B,C, or D

Answer 1

In this case, we'll have to carry out several steps to find the solution.

Step 01:

Data

`\begin{bmatrix}{1} & {5} & {2} \\ {1} & {1} & {7} \\ {0} & {-3} & {4}\end{bmatrix}`

Step 02:

inverse matrix:

= 1 5 2 | 1 0 0

1 1 7 | 0 1 0

0 -3 4 | 0 0 1

= 1 0 0 | - 25 26 - 33

0 1 0 | 4 -4 5

0 0 1 | 3 -3 4

The answer is:

- 25 26 - 33

4 -4 5

3 -3 4