What is inverse oflaplace 3/(s^2+4) ?

The answer to inverse oflaplace 3/(s^2+4) is 3/2 sin(2t)

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inverse oflaplace 3/(s^2+4)

inverse laplace

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

\frac{3}{2} sin (2 t)

Solution steps

L^{- 1} {\frac{3}{s ^{2} + 4}}

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

Use the constant multiplication property of Inverse Laplace Transform:

For function

f (t)

and constant

a : L^{- 1} {a \cdot f (t)} = a \cdot L^{- 1} {f (t)}

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

Use Inverse Laplace Transform table:

L^{- 1} {\frac{a}{s ^{2} + a ^{2}}} = sin (a t)

L^{- 1} {\frac{2}{s ^{2} + 2 ^{2}}} = sin (2 t)

= \frac{3}{2} sin (2 t)

cos (t - π)

- 2 x^{2} + 8, 3 x + 1, x = 0

7 y^{^{''}} + 21 y^{^{'}} - 28 y = 0

x \to 0 lim (\frac{x ^{3} + 1}{x ^{5}})

cos (6 t)

What is inverse oflaplace 3/(s^2+4) ?
The answer to inverse oflaplace 3/(s^2+4) is 3/2 sin(2t)