Question

Diketahui S = {bilangan asli kurang dari 20}
A ={2,3,5,7,11,13,17,19}
B ={1,3,5,7,9,11,13,15,17,19}
Tentukan:
a.A ∧ B; c.Ac - Bc;
b.B ∨ A; d.Bc - Ac.

Answer 1

A = {2, 3, 5, 7, 11, 13, 17, 19}
B = {1, 3, 5, 7, 9, 11, 13, 15, 17, 19}

a) A n B = {3, 5, 7, 11, 13, 17, 19}
b) B u A = {1, 2, 3, 5, 7, 9, 11, 13, 15, 17, 19}
c) Ac - Bc = {2}
d) Bc - Ac = {1, 9, 15}

Answer 2

A)  A ∧ B = {3,5,7,11,13,17,19}
b)  B ∨ A = {1,2,3,5,7,9,11,13,15,17,19}
c) A = {1,4,6,8,10,12,14,16,18}
    = {2,4,6,8,10,12,14,16,18}
    = {1}
d)  = {2}