Answer
1
Work Step by Step
In the expansion of $(x+y)^9$, the last term contains $y^9$.
The last term in this expansion is:
$\binom{9}{9}x^0y^9$; therefore the coefficient is 1.
Elementary and Intermediate Algebra: Concepts & Applications (6th Edition)
by Bittinger, Marvin L.; Ellenbogen, David J.; Johnson, Barbara L.
Published by
Pearson
ISBN 10:
0-32184-874-8
ISBN 13:
978-0-32184-874-1
Chapter 14 - Sequences, Series, and the Binomial Theorem - 14.4 The Binomial Theorem - 14.4 Exercise Set - Page 921: 10
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