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#1 2017-03-15 10:44:38
- evene
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- Registered: 2015-10-18
- Posts: 272
Finding the coefficient of [math]u^n[/math]
Let's say that I am given the product of two binomials
And I have expanded them via Newton's Binomial Theorem
I'm wondering how to find the coefficient of
in this case. And can this be generalized?Offline
#2 2017-03-15 10:51:33
Re: Finding the coefficient of [math]u^n[/math]
You could pull out a factor of from the second pair of parentheses, and then both of your bracketed terms are the same. It then suffices to find the coefficient of in the expansion of , which you can do just by using the binomial formula.
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