Question

find the inverse Laplace transform of s s square + 4 square ​

Answer 1

Answer:

Lsin2t=2s2+4=F(s)

F′(s)=−2s(s2+4)2

f(t)=sin2t

Lt(f(t))=L(tsin2t)=−F′(s)=2s(s2+4)2