If A=x:x is a natural numberB=x:x is even natural numberC=x:x is prime number
Then, (A∪B)∩C=
C
A = {1, 2, 3, 4, - - - -}
B = {2, 4, 6, 8, - - - -}
C = {2, 3, 5, 7, 11, 13, - - - -}
A ∪ B ={1, 2, 3, - - - -} ∪ {2, 4, 6, 8, - - - -}
= {1, 2, 3, - - - -} = A
(A ∪ B) ∩ C = A ∩ C
= {1, 2, 3, - - - -} ∩ {2, 3, 5, 7, - - - -} = C