3 arctan x – x 11. Evaluate the lim- limit using the known Taylor series representations for sin x arctangent and sine. Show the expansions and the cancellations. (2n+1) п X (2n+1) sinx Σ(-1), (2n +1)! For þx| <1, arctan x = 2(-1)" · 2n +1' n=0 n=0 3 arctan x – x lim = lim sin x х>0 (expand numerator and denominator into terms)

Advanced Engineering Mathematics
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ISBN:9780470458365
Author:Erwin Kreyszig
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Chapter2: Second-order Linear Odes
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11

3 arctan x – x
11. Evaluate the lim-
limit using the known Taylor series representations for
sin x
arctangent and sine. Show the expansions and the cancellations.
(2n+1)
п X
(2n+1)
sinx Σ(-1),
(2n +1)!
For þx| <1, arctan x = 2(-1)" ·
2n +1'
n=0
n=0
3 arctan x – x
lim
= lim
sin x
х>0
(expand numerator and denominator into terms)
Transcribed Image Text:3 arctan x – x 11. Evaluate the lim- limit using the known Taylor series representations for sin x arctangent and sine. Show the expansions and the cancellations. (2n+1) п X (2n+1) sinx Σ(-1), (2n +1)! For þx| <1, arctan x = 2(-1)" · 2n +1' n=0 n=0 3 arctan x – x lim = lim sin x х>0 (expand numerator and denominator into terms)
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