Question

I need help with matrices.
Find A^2, if possible.

Answer 1

just multiply it with itself

Answer 2

-1*-1 + (-2*1) = the top left , -1*-2 + -2*0= the top right

solve it yourself now

Answer 3

these are the options, what i got isnt any of these. i must be doing it wrong

Answer 4

it's the last one , it's very easy , just look at your notes how to multiply , if I gave you how to multiply , it's basically like giving your the answer which I already did :(

but look at your notes , it's very easy ^^

Answer 5

oh, okay. :) thank you