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OpenStudy (ell):
Help pwease!! Shanks! :) It says find the 5th term of the binomial expansion. This is what I have so far:
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OpenStudy (anonymous):
\(5\)th term is given by \(n\choose 5\).
OpenStudy (ell):
|dw:1397431728519:dw|
OpenStudy (anonymous):
are the exclamation marks supposed to be there?
OpenStudy (ell):
Yeah
OpenStudy (anonymous):
yes they're factorials
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OpenStudy (ell):
\[x ^{15}y ^{4}\] is what I have but im missing the number that goes in front of it; 210. Anyone know how to find it?
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