設A={x|x是小於9的正整數},B={1,2,3}+C={3,4,5,6},求A∩B,A∩C,A∩(B∪C),A∪(B∩C).

設A={x|x是小於9的正整數},B={1,2,3}+C={3,4,5,6},求A∩B,A∩C,A∩(B∪C),A∪(B∩C).

A∩B={1,2,3}
A∩C={3,4,5,6}
A∩(B∪C)={1,2,3,4,5,6}
A∪(B∩C)={1,2,3,4,5,6,7,8,9}