What is inverse oflaplace s/((s^2+3^2)^2) ?

The answer to inverse oflaplace s/((s^2+3^2)^2) is (tsin(3t))/6

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inverse oflaplace s/((s^2+3^2)^2)

inverse laplace

\frac{s}{( s ^{2} + 3 ^{2} ) ^{2}}

\frac{t sin ( 3 t )}{6}

Solution steps

L^{- 1} {\frac{s}{( s ^{2} + 3 ^{2} ) ^{2}}}

Apply inverse transform rule:

L^{- 1} {F (s)} = f (t)

then

L^{- 1} {s F (s)} = \frac{d}{d t} f (t) + f (0)

For

\frac{s}{( s ^{2} + 3 ^{2} ) ^{2}} : F (s) = \frac{1}{( s ^{2} + 3 ^{2} ) ^{2}}

= \frac{d}{d t} (L^{- 1} {\frac{1}{( s ^{2} + 3 ^{2} ) ^{2}}}) + L^{- 1} {\frac{1}{( s ^{2} + 3 ^{2} ) ^{2}}} (0)

L^{- 1} {\frac{1}{( s ^{2} + 3 ^{2} ) ^{2}}} : \frac{1}{54} (sin (3 t) - 3 t cos (3 t))

\frac{d}{d t} (\frac{1}{54} (sin (3 t) - 3 t cos (3 t))) = \frac{t sin ( 3 t )}{6}

Evaluate

\frac{1}{54} (sin (3 t) - 3 t cos (3 t))

at point

0 = 0

= \frac{t sin ( 3 t )}{6}

n = 2 \sum \infty \frac{1}{4 ^{n}}

\int_{0}^{1} t 9 t^{2} + 4 d t

\frac{x}{x + 8}

\int \frac{cos ( x )}{x} d x

5 x^{2} - 7 x

What is inverse oflaplace s/((s^2+3^2)^2) ?
The answer to inverse oflaplace s/((s^2+3^2)^2) is (tsin(3t))/6