Calculus 10th Edition

Published by Brooks Cole
ISBN 10: 1-28505-709-0
ISBN 13: 978-1-28505-709-5

Chapter 9 - Infinite Series - Review Exercises - Page 676: 25

Answer

$S=3, \dfrac{9}{2},\dfrac{11}{2}, \dfrac{25}{4}, \dfrac{137}{2}$

Work Step by Step

Our aim is compute the first five partial sums for the given sequence. $S_1=3; S_2=3+\dfrac{3}{2}=\dfrac{9}{2}; S_3=3+\dfrac{3}{2}+1=\dfrac{11}{2}; S_4=3+\dfrac{3}{2}+1+\dfrac{3}{4}=\dfrac{25}{4}; S_5=3+\dfrac{3}{2}+1+\dfrac{3}{4}+\dfrac{3}{5}=\dfrac{137}{20}$ Thus, our partial sums are: $S=3, \dfrac{9}{2},\dfrac{11}{2}, \dfrac{25}{4}, \dfrac{137}{2}$
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