Practice Question 8: Consider the series Σα-Σ 2" 3" +1 n=1 (a) Show that the series a, converges by comparing it with an appropriate geometric series n=1 b, using the comparison test. State explicitly the series b used for comparison. n=1 n=1 (b) If we use the sum of the first k terms a to approximate the sum of Σa, then the error n-1 n-1 R₁ = Σa will be smaller than b. Evaluate Σb, as an expression in k. This serves as a n=k+1 n=k+1 n=k+1 reasonable upper bound for R. (c) Using the upper bound for R, obtained in (b), determine the number of terms required to approximate the series a a accurate to within 0.0003. n=1
Practice Question 8: Consider the series Σα-Σ 2" 3" +1 n=1 (a) Show that the series a, converges by comparing it with an appropriate geometric series n=1 b, using the comparison test. State explicitly the series b used for comparison. n=1 n=1 (b) If we use the sum of the first k terms a to approximate the sum of Σa, then the error n-1 n-1 R₁ = Σa will be smaller than b. Evaluate Σb, as an expression in k. This serves as a n=k+1 n=k+1 n=k+1 reasonable upper bound for R. (c) Using the upper bound for R, obtained in (b), determine the number of terms required to approximate the series a a accurate to within 0.0003. n=1
Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter10: Sequences, Series, And Probability
Section10.3: Geometric Sequences
Problem 44E
Related questions
Question
Expert Solution
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
Step by step
Solved in 2 steps
Recommended textbooks for you
Algebra & Trigonometry with Analytic Geometry
Algebra
ISBN:
9781133382119
Author:
Swokowski
Publisher:
Cengage
Algebra & Trigonometry with Analytic Geometry
Algebra
ISBN:
9781133382119
Author:
Swokowski
Publisher:
Cengage