Hi All,

Just a quick question about Newton's Binomial.

When the upper bound of the summation is given the binomial is as follows:

$\displaystyle \sum_{i=0}^{n}{n \choose i}x^{n-i}y^{i}=(x+y)^{n}$

But what about when the upper bound is infinite? Does the result stay the same?

So is the following correct?

$\displaystyle \sum_{i=0}^{\infty}{n \choose i}x^{n-i}y^{i}=(x+y)^{n}$

Kind regards,

Chris