Attachment 20311

I don't understand the basic concept of binomials and don't understand this question so I don't know where to begin. If anyone could give any pointers I'd really appreciate that a lot. (Worried)

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- January 3rd 2011, 05:02 AMcaramelcakeBinomial theorem
Attachment 20311

I don't understand the basic concept of binomials and don't understand this question so I don't know where to begin. If anyone could give any pointers I'd really appreciate that a lot. (Worried) - January 3rd 2011, 05:49 AMsnowtea
The binomial theorem says that for the coefficient of is .

Now, the second binomial expands into something like:

Now, think about terms in the expansion:

The constant term will be

The coefficient of is

Use the binomial theorem to get values for that depend on . - January 4th 2011, 03:57 AMcaramelcake
finally understood it after so long! thanks :)