Question

P:(1,2,3),Q:(3,4,5,6) dan R:(6,7,8)
Maka tentukanlah:
Pu(QnR)=(PuQ)n(PuR)

Answer 1

(PuQ)n(PuR)
({1,2,3}u{3,4,5,6})n({1,2,3}u{6,7,8})
{1,2,3,4,5,6}n{1,2,3,6,7,8}
{1,2,3,6}