Show that if L{f(t)} = F(s) then L{etf(t)} = F(s - k) where k is a constant. Hence find: (a) Leat sin bt} (b) Leat cos bt} where a and b are constants in both cases. Acti Go to

Advanced Engineering Mathematics
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ISBN:9780470458365
Author:Erwin Kreyszig
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Show that if L{f(t)} = F(s) then L{etf(t)} = F(s - k) where k is a constant.
Hence find:
(a) Leat sin bt}
(b) Leat cos bt} where a and b are constants in both cases.
Acti
Go to
Transcribed Image Text:Show that if L{f(t)} = F(s) then L{etf(t)} = F(s - k) where k is a constant. Hence find: (a) Leat sin bt} (b) Leat cos bt} where a and b are constants in both cases. Acti Go to
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