# How do you find the inverse of #A=##((3, 2, 7), (0, 1, 2)) #?

##### 1 Answer

Nov 12, 2016

#### Answer:

The additive inverse of

It has no multiplicative inverse. Only square matrices have those.

#### Explanation:

So

A multiplicative inverse would have to satisfy:

#A A^(-1) = A^(-1) A = I#

for some identity matrix

By considering how we multiply matrices, then we notice that