Hi, guys. Please I need help for this inverse Laplace transform, the method requested is convolution. $\displaystyle L^{-1}\left\{{\displaystyle\frac{s}{(s^2 + 4)^2}}\right\}$
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Originally Posted by timh Hi, guys. Please I need help for this inverse Laplace transform, the method requested is convolution. $\displaystyle L^{-1}\left\{{\displaystyle\frac{s}{(s^2 + 4)^2}}\right\}$ $\displaystyle \mathcal{L}^{-1}\left\{\frac{s}{(s^2+4)^2}\right\}=\cos(2t)*\tfr ac{1}{2}\sin(2t)$. Can you carry out the convolution process?
In the process of convolution is where I have problems because at eval the integral from 0 at t, the value becomes 0. I integrate by parts. Greets.
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