What is inverse oflaplace 3/((s+1)(s+2)) ?

The answer to inverse oflaplace 3/((s+1)(s+2)) is 3e^{-t}-3e^{-2t}

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inverse oflaplace 3/((s+1)(s+2))

inverse laplace

\frac{3}{( s + 1 ) ( s + 2 )}

3 e^{- t} - 3 e^{- 2 t}

Solution steps

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

Take the partial fraction of

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

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

Use the linearity property of Inverse Laplace Transform:

For functions

f (s), g (s)

and constants

a, b : L^{- 1} {a \cdot f (s) + b \cdot g (s)} = a \cdot L^{- 1} {f (s)} + b \cdot L^{- 1} {g (s)}

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

L^{- 1} {\frac{3}{s + 1}} : 3 e^{- t}

L^{- 1} {\frac{3}{s + 2}} : 3 e^{- 2 t}

= 3 e^{- t} - 3 e^{- 2 t}

\int \frac{14 x - 11}{( 2 x - 3 ) ( x + 1 )} d x

\int ln (y + 1) d y

\frac{s + 3}{4 s ^{2} + 5}

x \to 0 + lim (\frac{1}{x ^{13}})

\frac{\partial}{\partial y} (x - \frac{1}{y})

What is inverse oflaplace 3/((s+1)(s+2)) ?
The answer to inverse oflaplace 3/((s+1)(s+2)) is 3e^{-t}-3e^{-2t}