   Chapter 13.CR, Problem 81E ### Algebra and Trigonometry (MindTap ...

4th Edition
James Stewart + 2 others
ISBN: 9781305071742

#### Solutions

Chapter
Section ### Algebra and Trigonometry (MindTap ...

4th Edition
James Stewart + 2 others
ISBN: 9781305071742
Textbook Problem

# 8 1 − 8 3 • Terms in a Binomial Expansion Find the indicated terms in the given binomial expansion.Find the 20 t h term in the expansion of ( a + b ) 22 .

To determine

To find:

The 20th term in the expansion.

Explanation

Given:

The expression is,

(a+b)22

Approach:

General term of the Binomial Expansion:

The rth term in the expansion of (a+b)n is given by,

(nr1)an(r1)br1(1)

Calculation:

The 20th term contains a20 is given by the formula for general term with a and b.

Substitute 22 for n and 20 for r in equation (1)

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