Let a and b be positive real numbers. If a arithmetic progression a, G₁, G₂, b are in g ogression and a, H₁, H₂, b are in harmonic

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

(a) Find the sum to infinity of the series 

            1-3x+5x\power{2}-7x\power{3}+....∞

where 0<|x|<1

(b)Let a and b be positive real numbers . If a , A\index{1},A\index{2},b are 

in arithmetic progression a, G\index{1},G\index{2}, b are in geometric 
progression and a, H\index{1},H\index{2}, b are in harmonic progression 
then show that 

                    \frac{G\index{1}G\index{2}|H\index{1}H\index{2}}=\frac{A\index{1}+A\index{2}|H\index{1}+H\index{2}}=\frac{(2a+b)(a+2b)|9ab} 

 

 

(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
College Algebra
College Algebra
Algebra
ISBN:
9781305115545
Author:
James Stewart, Lothar Redlin, Saleem Watson
Publisher:
Cengage Learning