Determine the coefficient of x9y3 in the expansions of (a) (x + y)12 (b) (x + 2y)12
Question:
(a) (x + y)12
(b) (x + 2y)12
(c) (2x - 3y)12.
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Related Book For
Discrete and Combinatorial Mathematics An Applied Introduction
ISBN: 978-0201726343
5th edition
Authors: Ralph P. Grimaldi
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