Answer
$n=3333$
Work Step by Step
Recall the formula that $\text{Error}=|R_n| \leq a_{n+1}$
Here, we have
$R_n \leq \dfrac{1}{3n+4} \lt 10^{-4}$
and $ 3n+4 \gt 10^{4}$
or, $3n \gt 10000-4$
or, $n \gt 3332$
or, $n=3333$
Calculus: Early Transcendentals (2nd Edition)
by Briggs, Bill L.; Cochran, Lyle; Gillett, Bernard
Published by
Pearson
ISBN 10:
0321947347
ISBN 13:
978-0-32194-734-5
Chapter 8 - Sequences and Infinite Series - 8.6 Alternating Series - 8.6 Exercises - Page 657: 35
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