Advanced Engineering Mathematics
Advanced Engineering Mathematics
10th Edition
ISBN: 9780470458365
Author: Erwin Kreyszig
Publisher: Wiley, John & Sons, Incorporated
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3.3 using the fourier transform, f and g are in the first picture and the question is in the second 

der the functions
e-t, t> 0
g(t) =
0,
f(t) cos(t);
otherwise
lace Transform of f and g separately, and use the Laplace Transf
rem on L[f L[g] to show that
expand button
Transcribed Image Text:der the functions e-t, t> 0 g(t) = 0, f(t) cos(t); otherwise lace Transform of f and g separately, and use the Laplace Transf rem on L[f L[g] to show that
tie Lapiacе
raiisiorTI,
по
SIHOW
CIle COIV
au
integral aS deined rC
expression (10) results.
3.3. Now we switch to a Fourier Transform approach. Evaluate the Fourier Transforms of f and
g separately, and use the Fourier Transform version of the convolution theorem on F(p) G(p) to show
that
(f*g)Fourier Sin(t) + cos(t)
(11)
2
3.4. Evaluate directly the convolution integral as defined for the Fourier Transform. and show that
expand button
Transcribed Image Text:tie Lapiacе raiisiorTI, по SIHOW CIle COIV au integral aS deined rC expression (10) results. 3.3. Now we switch to a Fourier Transform approach. Evaluate the Fourier Transforms of f and g separately, and use the Fourier Transform version of the convolution theorem on F(p) G(p) to show that (f*g)Fourier Sin(t) + cos(t) (11) 2 3.4. Evaluate directly the convolution integral as defined for the Fourier Transform. and show that
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