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

/* code_begins */

{{{
x=cost
y=sint
z=2t
x**2+y**2+z**2=cost**2+sint**2+4*t**2
integral(cost**2+sint**2+4*t**2,t,0,4*pi)
}}}

/* code_ends */

 * '''Solution by''': 
   * VVL Amruthavalli,student,prakasam Engg college
   * G.Haritha,student,prakasam Engg college
   * G.Mamatha,student,prakasam Engg college