could someone please give me some hints about how to prove this?

http://1.hidemyass.com/ip-8/encoded/...sxfXtifQ%3D%3D

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- May 5th 2012, 08:36 PMBlinkyBooVerify the following
could someone please give me some hints about how to prove this?

http://1.hidemyass.com/ip-8/encoded/...sxfXtifQ%3D%3D

- May 6th 2012, 08:42 AMBlinkyBooRe: Verify the following
sorry, i thought it worked when i previewed ... i'm not sure how to put it in code, but here's a picture

Attachment 23794 - May 7th 2012, 12:55 PMBlinkyBooRe: Verify the following
any help would be much appreciated

- May 9th 2012, 03:34 PMBlinkyBooRe: Verify the following
not a single person can help?

- May 9th 2012, 03:59 PMPlatoRe: Verify the following
Suppose that $\displaystyle a,~b,~\&~c$ are positive integers such that $\displaystyle a>b$.

Further, suppose that we have$\displaystyle a $ blue balls and $\displaystyle c+b $ red balls.

Now we put the balls all together in a box from which we randomly choose $\displaystyle b$ balls.

Surely you can see that we can choose from $\displaystyle 0\text{ to }b$ blue balls.

That is all that summation says. - May 9th 2012, 04:55 PMBlinkyBooRe: Verify the following
i'm not sure how that's proving it <:\