Contoh 5 soal tentang himpunan

a={i,b,u}
b={b,u,n,d,a}
c={m,a,m,a}

a n b={b,u}
a n c={a}
b n c={a}
a u c={i,b,u,m,a}
a u b={i,b,u,n,d,a}