||'''Book'''|| Advanced Engineering Mathematics ||
 ||'''Author'''|| Erwin Kreyszig ||
 ||'''Edition'''|| 8th Edition ||

/* code_begins */

{{{
s = var("s")
t = var("t")
k = var("k")
f = exp((-s)*t)*(k)    #since laplace transform is an integral from 0 to infinity our and our function # is zero for t < 1 and t > 4
F = f.integrate(t, 1, 4)
show(F)
}}}

/* code_ends */

 * '''Solution by''': 
 <Arnab Basu>, <Student>, <IIT Roorkee>

   <Saurabh Agrawal>, <Student>, <IIT Roorkee>

   <Rachit Jha>, <Student>, <IIT Roorkee>