Given the geometric sequence {a;} = {1000, 900, 810, 729,...} (a) Determine a40, the 40th term. Round to the nearest thousandth. (b) Determine S40 = E, a;, (the sum of the first 40 terms). Round to the nearest thousandth. (c) Does the infinite sum E, a; exist? Explain briefly.

College Algebra
10th Edition
ISBN:9781337282291
Author:Ron Larson
Publisher:Ron Larson
Chapter8: Sequences, Series,and Probability
Section8.3: Geometric Sequences And Series
Problem 5ECP: The second term of a geometric sequence is 6, and the fifth term is 81/4. Find the eighth term....
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Given the geometric sequence {a;} = {1000, 900, 810, 729,...}
(a) Determine a40, the 40th term. Round to the nearest thousandth.
140
(b) Determine S40
ai, (the sum of the first 40 terms). Round to the nearest
thousandth.
(c) Does the infinite sum E1 a; exist? Explain briefly.
(d) Assume the infinite sum E, a; exists, find the value of E, a;
Transcribed Image Text:Given the geometric sequence {a;} = {1000, 900, 810, 729,...} (a) Determine a40, the 40th term. Round to the nearest thousandth. 140 (b) Determine S40 ai, (the sum of the first 40 terms). Round to the nearest thousandth. (c) Does the infinite sum E1 a; exist? Explain briefly. (d) Assume the infinite sum E, a; exists, find the value of E, a;
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