Question

Anyone could help me this question? it is about linear independent. determine whether the set {I,A,A^2} is linearly independent? A is 2*2 matrix. I think it is linear independent but i don't know how to prove it.Thank you :)

Answer 1

What is 'I'?

Answer 2

I is identity matrix, which is \[\left[\begin{matrix}1 & 0 \\ 0 & 1\end{matrix}\right]\]