Question

Find the inverse matrix or type

"none". (Use decimals)
[3 -1] [-5 3]

Answer 1

I don't know if you mean [3,-1] & [-5,3] or
`\left[\begin{array}{ccc}3&-1\\-5&3\end{array}\right]`

The inverse for first ones are "none" because they're not square matrices.

However the inverse for
`\left[\begin{array}{ccc}3&-1\\-5&3\end{array}\right]` is
`\left[\begin{array}{ccc}0.75&0.25\\1.25&0.75\end{array}\right]`.

Hope this helps.