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Question Number 96659 by mathmax by abdo last updated on 03/Jun/20
find L (((sh(3x))/x)) L laplace transform
findL(sh(3x)x)Llaplacetransform
Answered by Sourav mridha last updated on 07/Jun/20
f(a)=∫_0 ^∞ e^(−ax) sh(3x)dx            =(3/(a^2 −9))  now L[((sh(3x))/x)]=∫_s ^∞ f(a)da                                     =∫_s ^∞ (3/(a^2 −3^2 ))da                                     =(1/2)[ln(((a−3)/(a+3)))]_s ^∞                                     =ln[((s+3)/(s−3))]^(1/2) ..
f(a)=0eaxsh(3x)dx=3a29nowL[sh(3x)x]=sf(a)da=s3a232da=12[ln(a3a+3)]s=ln[s+3s3]12..

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