Show that the series n=0 xn cos(nx) x² +n³ + 1 defines a differentiable function g(x) for x in [-1, 1].

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter4: Polynomial And Rational Functions
Section4.2: Properties Of Division
Problem 36E
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Show that the series
∞
xn cos(nx)
Č
defines a differentiable function g(x) for x in [-1, 1].
x² +n³ + 1
n=0
Transcribed Image Text:Show that the series ∞ xn cos(nx) Č defines a differentiable function g(x) for x in [-1, 1]. x² +n³ + 1 n=0
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