The coefficient of x 2 in the binomial expansion of (1 + x/2) n , where n
Question:
The coefficient of x2 in the binomial expansion of (1 + x/2)n, where n is a positive integer, is 7.
a. Find the value of n.
b. Using the value of n found in part a, find the coefficient of x4.
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Step by Step Answer:
a To find the value of n we need to use the binomial expansion formula and equate the coefficie...View the full answer
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Related Book For 
Edexcel AS And A Level Mathematics Pure Mathematics Year 1/AS
ISBN: 9781292183398
1st Edition
Authors: Greg Attwood
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