# What is matrix inverse

(Comments)

Today any material can be easily accessed on Internet!

And therefore today I want to at least keep it in my mind, what is the sense of having a matrix inverse.

As the matrix inverse symbol is $Matrix^{-1}$

So it means if some matrix let's say

and have matrix inverse, it will be

$$A . A^{-11} = Identity$$

And as we know the matrix identity is always

if 2 multiple by 2 it will be

$$\begin{bmatrix} 1 & 0 \\ 0 & 1 \end{bmatrix}$$

egin{bmatrix} x & x \ y & y nd{bmatrix}

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