Question 1155107

Let U={1,2,3,4,5,6,7,8,9}, X={2,4,6,8}, Y={2,3,4,5,6}, Z={1,2,3,8,9}:
Find X ⋂ (Y ′⋃ Z′)

Y'--"Y' is complement", or "not Y"; if U = {1,2,3,4,5,6,7,8,9} and Y = {2,3,4,5,6} , then  

Y ′= {1,7,8,9}
and
Z′= { 4,5,6,7}

then (Y ′⋃ Z′)={1,4,5,6,7,8,9}

X ⋂ (Y ′⋃ Z′)={2,4,6,8}⋂{1,4,5,6,7,8,9}={4,6,8}