(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

the question is :

Get an example of metrics M2X2 that:

A^2 doest equal A but A^3 equals A^2

3. The attempt at a solution

I tried to put matrices A equals :

a b

c d

and tried to solve it , but I get to 4 equations with 4 parameters and I don't know how to solve it , is there any easier way ?

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# Homework Help: How to solve this kind of questions ?

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