1. 2. 3. ကံ Consider the alternating series: ∞ (-1)n-1 7+2n n=1 Identify bn in the alternating series. Show that the sequence of {b} is decreasing. Find the limit: lim bn. n→∞

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter10: Sequences, Series, And Probability
Section10.3: Geometric Sequences
Problem 30E
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please answer parts 1-3.

1.
Consider the alternating series:
∞
(-1)n-1
7+2n
n=1
Identify bn in the alternating series.
2.
Show that the sequence of {b} is decreasing.
3.
Find the limit: lim bn.
n→∞
Transcribed Image Text:1. Consider the alternating series: ∞ (-1)n-1 7+2n n=1 Identify bn in the alternating series. 2. Show that the sequence of {b} is decreasing. 3. Find the limit: lim bn. n→∞
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