Laplace Transform f(t) = e^t *sin(t)sin(5t)

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Main Question or Discussion Point

Hey everyone

Does anyone know how to do the following Laplace Transformation

f(t) = e^t *sin(t)sin(5t)

i can do it with one sin function but don't know how to do it with 2.

any help would be appreciated.
 

Answers and Replies

5
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Hey everyone

Does anyone know how to do the following Laplace Transformation

f(t) = e^t *sin(t)sin(5t)

i can do it with one sin function but don't know how to do it with 2.

any help would be appreciated.
Use the addition formula for sines:

sin(t)sin(5t) = (cos(4t) - cos(6t))/2
 

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