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

/* code_begins */

{{{
y=cost
z=sint
1+y^2+z^2=2
integral(2,t,0,pi)
}}}

/* code_ends */

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