Question

A famous question, but try this one, guys.

If\[(1+x+x^2)^n = a_0 + a_1 x + a_2 x^2 + \cdots + a_{2n} x^{2n}\]Prove the following relation:\[a_0^2 - a_1^2 + \cdots - a^2_{2n-1}+ a^2_{2n}=a_n\]

Answer 1

oh god

Answer 2

I don't even think I'm learning this material... ._.'

Answer 3

I had to edit that four times to get it right.

Answer 4

The Latex is now corrupt

Answer 5

Click on another question on the left, then come back here again. It should render.

Answer 6

OK, that worked