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

/* code_begins */

{{{
t=var('t')
a=var(a')
r=a*(1-cos(t))
b=r*r
c=(integrate(b,(t,0,2*pi))/2)
}}}

/* code_ends */

 * '''Solution by''': 
   * srija.n,student,pec
   * sivalatha.k,student,pec
   * triveni.k,student,pec