Thomas' Calculus 13th Edition

Published by Pearson
ISBN 10: 0-32187-896-5
ISBN 13: 978-0-32187-896-0

Chapter 5: Integrals - Section 5.2 - Sigma Notation and Limits of Finite Sums - Exercises 5.2 - Page 265: 13


$4\Sigma_{k=1} \frac{1}{2^{k}}$

Work Step by Step

as - k=Starting - 4 indicates How many times it will be performed -$ \frac{1}{2^{k}}$ shows the form which has to be used put k=1,2,3,4 $4\Sigma_{k=1} \frac{1}{2^{k}}$=$\frac{1}{2}$ +$\frac{1}{4}$+$\frac{1}{8}$+$\frac{1}{16}$
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