SOLUTION: a. use factorial notation to write the coefficient of the fifth term in the expansion of (a+b)^18 b. find the fifth term

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Question 81945This question is from textbook
: a. use factorial notation to write the coefficient of the fifth term in the expansion of (a+b)^18
b. find the fifth termThis question is from textbook

Answer by stanbon(48558) About Me  (Show Source):
You can put this solution on YOUR website!
a. use factorial notation to write the coefficient of the fifth term in the expansion of (a+b)^18
18C14 = 18!/[4!14!]
b. find the fifth term
3060a^14b^4
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Cheers,
Stan H.