What is laplacetransform y=te^{-3t}sin(5t) ?

The answer to laplacetransform y=te^{-3t}sin(5t) is (5(2s+6))/((s^2+6s+34)^2)

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laplacetransform y=te^{-3t}sin(5t)

laplace transform

y = t e^{- 3 t} sin (5 t)

\frac{5 ( 2 s + 6 )}{( s ^{2} + 6 s + 34 ) ^{2}}

Solution steps

L {e^{- 3 t} t sin (5 t)}

Use Laplace Transform table:

L {t^{k} f (t)} = (- 1)^{k} \frac{d ^{k}}{d s ^{k}} (L {f (t)})

For

t e^{- 3 t} sin (5 t) : f (t) = e^{- 3 t} sin (5 t), k = 1

= (- 1)^{1} \frac{d}{d s} (L {e^{- 3 t} sin (5 t)})

L {e^{- 3 t} sin (5 t)} : \frac{5}{( s + 3 ) ^{2} + 25}

\frac{d}{d s} (\frac{5}{( s + 3 ) ^{2} + 25}) = - \frac{5 ( 2 s + 6 )}{( s ^{2} + 6 s + 34 ) ^{2}}

= (- 1)^{1} (- \frac{5 ( 2 s + 6 )}{( s ^{2} + 6 s + 34 ) ^{2}})

= \frac{5 ( 2 s + 6 )}{( s ^{2} + 6 s + 34 ) ^{2}}

\frac{( 3 x - 7 )}{( 9 x + 5 )} + x^{3}

\frac{\partial}{\partial y} (x^{2} y)

\int \frac{x}{2 - x ^{2}} d x

\frac{d}{d x} (- 3 sin (x - π) + x)

y^{^{'}} - 9 y = 27

What is laplacetransform y=te^{-3t}sin(5t) ?
The answer to laplacetransform y=te^{-3t}sin(5t) is (5(2s+6))/((s^2+6s+34)^2)