70-77. Sequences of partial sums Consider the following infinite series. a. Write out the first four terms of the sequence of partial sums. b. Estimate the limit of {S,} or state that it does not exist. 70. E cos rk 71. Σ 9(0.1)* 72. Σ1.5t 73. Σ 3 74. Σ 75. Σ(-1) 76. 2(-1)* k 77. 10* k=1

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter10: Sequences, Series, And Probability
Section10.1: Infinite Sequences And Summation Notation
Problem 33E
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70-77. Sequences of partial sums Consider the following infinite
series.
a. Write out the first four terms of the sequence of partial sums.
b. Estimate the limit of {S,} or state that it does not exist.
70. E cos rk
71. Σ
9(0.1)*
72. Σ1.5t
73. Σ 3
74. Σ
75. Σ(-1)
76. 2(-1)* k
77.
10*
k=1
Transcribed Image Text:70-77. Sequences of partial sums Consider the following infinite series. a. Write out the first four terms of the sequence of partial sums. b. Estimate the limit of {S,} or state that it does not exist. 70. E cos rk 71. Σ 9(0.1)* 72. Σ1.5t 73. Σ 3 74. Σ 75. Σ(-1) 76. 2(-1)* k 77. 10* k=1
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