### Exercise NO. 1 : Algebra, x+y+z=0

28Jan08

A few days ago I were stuck with one exercise which I can’t pushed off :] Meanwhile when I forgotten about it, friend of mine, Ecik, did it. It’s below with his solution.

Prove the following:

if

Solution:

I’m open on any suggestions or other solutions of yours.

If you’d like to see Ecik’s blog, here it is http://braindarkside.wordpress.com/

Filed under: Exercises, Identity, Mathematics | 2 Comments

Tags: ecik, math, x+y+z=0, zero

You can also use the identity

Very cool. Thank you Ofir