# How do you find the inverse of #[(11,-5), (2,-1)]#?

##### 1 Answer

Apr 25, 2018

#### Answer:

Append an identity matrix to the right.

Use elementary row operations to make the matrix on the left until it becomes an identity matrix; this will make the right will become the inverse matrix.

#### Explanation:

Given:

Append an identity matrix to the right:

Use elementary row operations:

The inverse is the matrix on the right: