matrix proof

[strange stratus]

im stuck on part a. i just dont see how that can be proved

[median patio]

1. Wait patiently for a helper to come along.
2. Once someone helps you, say thank you and close the thread with:

+close

3. Feel free to nominate the person for helper of the week in #helper-nominations
4. Do not ping the mods, unless someone is breaking the rules.
5. If you're happy with the help you got here, and the server overall, you can contribute financially as well:

[hoary lintel]

Find A^(-1). You will see that it is the same as A.
Or you can also find A^2, which should be equal to I.

[strange stratus]

Wait really?

A^2 = I??

Oh wait

I'm dumb 😭😭

Ohhh

I see what u mean

Thanks

[hoary lintel]

You're welcome!

[strange stratus]

👍

+close