Results 1 to 2 of 2

- Mar 13th 2014, 09:09 PM #1

- Joined
- Mar 2014
- From
- Montreal
- Posts
- 1

## Need Help!!

- Mar 14th 2014, 10:54 AM #2

- Joined
- Nov 2013
- From
- California
- Posts
- 5,126
- Thanks
- 2175

## Re: Need Help!!

you lost me with the edit.

do you mean this?

$z=\dfrac{\left(\begin{array}{c}y \\ \frac{x+y}{2}\end{array}\right)}{\displaystyle{ \sum_{x=0}^y} \left(\begin{array}{c}y \\ x\end{array}\right)}$

and you want to show $z=0$ ? It's pretty clearly not 0 as all those terms are positive.