Explanation

A matrix inverse is like division.

If A⁻¹ exists:
AA⁻¹ = I

Only square matrices can have inverses.

Quiz

1. What is an inverse?

2. What does AA⁻¹ equal?

3. Must matrices be square?

4. Do all matrices have inverses?

5. Is inverse like division?

Answer Key

1. A matrix that undoes another

2. Identity matrix

3. Yes

4. No

5. Yes