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I'm confused with the Algebra, how did we get 1-2^n? I thought the 2^n both canceled out

I'm confused with the Algebra, how did we get 1-2^n? I thought the 2^n both canceled out

Algebra & Trigonometry with Analytic Geometry
Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter6: The Trigonometric Functions
Section6.4: Values Of The Trigonometric Functions
Problem 20E
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I'm confused with the Algebra, how did we get 1-2^n? I thought the 2^n both canceled out.

n+1 4n+3 1 ant1-an 4n 1 (4n -1)(4n + 3) <0 for n 2 1, SO strictly decreasing. ant1- an = (n+1-2"+)– (n – 2" ) =1– 2" < 0 for n21, so strictly decreasing.
Transcribed Image Text:n+1 4n+3 1 ant1-an 4n 1 (4n -1)(4n + 3) <0 for n 2 1, SO strictly decreasing. ant1- an = (n+1-2"+)– (n – 2" ) =1– 2" < 0 for n21, so strictly decreasing.
(n+l-2011)-(n-2n) n+|-2^.2'- 42° |-2.2 1-2 What happened that gave us they canceled
Transcribed Image Text:(n+l-2011)-(n-2n) n+|-2^.2'- 42° |-2.2 1-2 What happened that gave us they canceled
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