Let f satisfy f (t +T) = f(t) for all t >0 and for some fixed positive number T; f is said to be a periodic with the period T on 0

Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
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Let f satisfy f(t +T) = f(t) for all t > 0 and for some fixed positive
Edit
number T; f is said to be a periodic with the period T on 0<t < o.
Then, the Laplace transform of f(t) is given by
T
1
L{f(t)} =
e st f(t) dt.
1– e-sT
Use this fact to find the Laplace transform of the given function.
1, 0<t<4
1 0, 4<t<8
f(t) =
%3D
げ(t+8)3D f(t)
L{f(t)} =
1
4s
4+e-4s
Transcribed Image Text:Let f satisfy f(t +T) = f(t) for all t > 0 and for some fixed positive Edit number T; f is said to be a periodic with the period T on 0<t < o. Then, the Laplace transform of f(t) is given by T 1 L{f(t)} = e st f(t) dt. 1– e-sT Use this fact to find the Laplace transform of the given function. 1, 0<t<4 1 0, 4<t<8 f(t) = %3D げ(t+8)3D f(t) L{f(t)} = 1 4s 4+e-4s
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