Find the sum to infinity of the series 1 − 3x + 5x² − 7x³ + .... ∞

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter5: Inverse, Exponential, And Logarithmic Functions
Section5.2: Exponential Functions
Problem 71E
icon
Related questions
Question

solve both the question s

(a) Find the sum to infinity of the series
1-3x+5x² - 7x³ + .... ∞
where 0 < x < 1
(b)Let a and b be positive real numbers. If a, A₁, A2, b are
in arithmetic progression a, G₁, G2, b are in geometric
progression and a, H₁, H₂, b are in harmonic progression
then show that
G₁ G₂
H₁ H₂
A₁ + A₂
H₁ + H₂
(2a + b)(a + 2b)
9ab
Transcribed Image Text:(a) Find the sum to infinity of the series 1-3x+5x² - 7x³ + .... ∞ where 0 < x < 1 (b)Let a and b be positive real numbers. If a, A₁, A2, b are in arithmetic progression a, G₁, G2, b are in geometric progression and a, H₁, H₂, b are in harmonic progression then show that G₁ G₂ H₁ H₂ A₁ + A₂ H₁ + H₂ (2a + b)(a + 2b) 9ab
Expert Solution
steps

Step by step

Solved in 3 steps with 3 images

Blurred answer
Recommended textbooks for you
Algebra & Trigonometry with Analytic Geometry
Algebra & Trigonometry with Analytic Geometry
Algebra
ISBN:
9781133382119
Author:
Swokowski
Publisher:
Cengage