1 9a) Which of the following describes E 'n=1 e¬n+e" 1 A) converges by comparison to E n=1 e-n 1 B) converges by comparison to E 'n=1 en C) diverges by comparison to E n=1 e¬n D) diverges by comparison to E 1 n=1 e"

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter2: Equations And Inequalities
Section2.6: Inequalities
Problem 80E
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Only need part a and c.

1
9a) Which of the following describes 20
n=1 e-n+en
A) converges by comparison to E
n=1
e-n
1
B) converges by comparison to E0
n=1 en
1
C) diverges by comparison to E
n=1 e-n
1
D) diverges by comparison to E
n=1 en
n
9b) Determine if £
converges or diverges.
n=2 ln n
9c) What is the smallest number of terms needed to guarantee that you find the sum E
(-1)"
n=1 n²+n
1
accurate to within of the true value?
50
Transcribed Image Text:1 9a) Which of the following describes 20 n=1 e-n+en A) converges by comparison to E n=1 e-n 1 B) converges by comparison to E0 n=1 en 1 C) diverges by comparison to E n=1 e-n 1 D) diverges by comparison to E n=1 en n 9b) Determine if £ converges or diverges. n=2 ln n 9c) What is the smallest number of terms needed to guarantee that you find the sum E (-1)" n=1 n²+n 1 accurate to within of the true value? 50
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