Please help with part b

College Algebra
10th Edition
ISBN:9781337282291
Author:Ron Larson
Publisher:Ron Larson
Chapter8: Sequences, Series,and Probability
Section8.1: Sequences And Series
Problem 9ECP: For the series i=1510i find (a) the fourth partial sum and (b) the sum. Notice in Example 9(b) that...
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Please help with part b
Consider the following infinite series. Complete parts (a) through (c) below.
M8
k=1
2
5k
a. Find the first four partial sums S₁, S2, S3, and S4 of the series.
2
12
S₁ = S₂ =
"
5
25
(Simplify your answers.)
b. Find a formula for the nth partial sum Sn of the infinite series.
Sn = n²1
7
S3 =
62
125
S4
31
625
=
***
Transcribed Image Text:Consider the following infinite series. Complete parts (a) through (c) below. M8 k=1 2 5k a. Find the first four partial sums S₁, S2, S3, and S4 of the series. 2 12 S₁ = S₂ = " 5 25 (Simplify your answers.) b. Find a formula for the nth partial sum Sn of the infinite series. Sn = n²1 7 S3 = 62 125 S4 31 625 = ***
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