I'm not very good at math and I don't like it either. I need it as a preresequite for University(classes i'm taking just use basics from Pre-Cal 12, so i'm not going to be hurt to bad).

Well, here it is. I think i'm trying to make it harder than it is, I do that sometimes...I hate it...

if 1/b-a, 1/2b, 1/b-c are sequences of an arithmetic function, prove that b^2=ac


Any help appreciated....

"why I've gotta be one of the cool kids just to walk by/
- without being tripped, thrown down on the ground and kicked/
Insulting me for no reason, I was treated like shit/
The teachers let it happen/
I've even seen some of them teachers laughing/
That's why I had a smile on my face when I started blastin/" - Ill Bill - The Anatomy of a School Shooting