Prove that the sequence is increasing.

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 71E
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Prove that the sequence is increasing. Actually this is a bit hard, but proceed as
follows.
1
(1+:)"/(1+)
n+1
• Note that an
Hence, use algebra to show that
n
n
n+1
(),
An+1
1
1 +
(n + 1)²,
An
• Bernoulli's inequality states that for any x> -1, (1+x)n > 1+ nx. Use this to
deduce that
An+1
> (1
An
n +1
(;+)(4"-)
and simplify the last expression.
Transcribed Image Text:Prove that the sequence is increasing. Actually this is a bit hard, but proceed as follows. 1 (1+:)"/(1+) n+1 • Note that an Hence, use algebra to show that n n n+1 (), An+1 1 1 + (n + 1)², An • Bernoulli's inequality states that for any x> -1, (1+x)n > 1+ nx. Use this to deduce that An+1 > (1 An n +1 (;+)(4"-) and simplify the last expression.
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