## Finding a Determinant (Part 2)

We show, step-by-step, how to find the determinant of a matrix by using row operations.

## Finding a Determinant (Part 1)

We show, step-by-step, how to find the determinant of a given 4 x 4 matrix.

## Does that Matrix Have an Inverse?

We describe how to find if a matrix has an inverse, then give the definition of determinant and relate it to the inverse.