Lee fiR-> R continonsliy diffenentiable functionwi4th penod aT * fx+21) = f(x) and factan) %3D also Fdx = 0 Use the fourler sepiles and Parsevall's identities prove killowing to inquality 23 write out f)ni and fCx) in their full series to determine A. md C. A and Die then use each o efficlent to determine relwtion between and bic und Ca io7 fa) = Ao +$ Ak cos Ckx) t Bx sin (ka) 2 f'(x) = t. to E Ck CosCkx) t DK sin(ke)
Lee fiR-> R continonsliy diffenentiable functionwi4th penod aT * fx+21) = f(x) and factan) %3D also Fdx = 0 Use the fourler sepiles and Parsevall's identities prove killowing to inquality 23 write out f)ni and fCx) in their full series to determine A. md C. A and Die then use each o efficlent to determine relwtion between and bic und Ca io7 fa) = Ao +$ Ak cos Ckx) t Bx sin (ka) 2 f'(x) = t. to E Ck CosCkx) t DK sin(ke)
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
Related questions
Question
use Fourier series and Parsevall's identities to prove inequality

Transcribed Image Text:allet f:R->R
* fCX+2M) = f()
diffenentiable
- function rWith
Con
period at
关
and
also
| foldx=0
A 2abiana)
sepiles and Parsevall Š identities
to
prove lowing
Use
the four er
inquelity
2.
一π
23 write out fGx) nis and f'Gx)i
A. wnd Co
Ar and Dic
in theirnd full series to determine
co efficlent?
then
use TT each
to determinerelation
between
and
Bic
und Ca im7 As
fle) = Ao
+ $ Ak cos(kx) tBx sin (ka)
ニ
to
Ck Cos(kx) t Dk sin(kx)
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