Determine the coefficient of x9y3 in the expansions of (a) (x + y)12 (b) (x + 2y)12

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Determine the coefficient of x9y3 in the expansions of
(a) (x + y)12
(b) (x + 2y)12
(c) (2x - 3y)12.

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Discrete and Combinatorial Mathematics An Applied Introduction

ISBN: 978-0201726343

5th edition

Authors: Ralph P. Grimaldi

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Question Posted: Jun 21, 2016 08:00 AM

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Determine the coefficient of x9y3 in the expansions of (a) (x + y)12 (b) (x + 2y)12

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a b c Let a 2x and b 3y By ...View the full answer

Discrete and Combinatorial Mathematics An Applied Introduction

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