To find: To find the intervals of converges.
Answer to Problem 69E
The interval of convergence is
Explanation of Solution
Given:
The given series
Formula used:
The ratio test Let
Then series convergence if
Calculation:
Given series is
The series of absolute values is,
Using the ratio test,
The series converges absolutely for,
And the series diverges at the endpoints by the
Option (A) is the correct answer.
Chapter 9 Solutions
CALCULUS:GRAPHICAL,...,AP ED.-W/ACCESS
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