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

/* code_begins */

{{{
s,t=var('s,t')
f=(2*s^3/(s^4-81))
inverse_laplace(f,s,t);f
inverse_laplace(f,s,t)
}}}

/* code_ends */

 * '''Solution by''': 
   * <kiran b mate>, <lect>, <k.b,p.>
   * <amit v shejwal>, <lect>, <k.b,p.>