问题
填空题
设A={3,5,6,8},B={4,5,7,8},则A∩B=______,A∪B=______.
答案
∵A={3,5,6,8},B={4,5,7,8},
∴A∩B={5,8};A∪B={3,4,5,6,7,8}
故答案为{5,8};{3,4,5,6,7,8}
设A={3,5,6,8},B={4,5,7,8},则A∩B=______,A∪B=______.
∵A={3,5,6,8},B={4,5,7,8},
∴A∩B={5,8};A∪B={3,4,5,6,7,8}
故答案为{5,8};{3,4,5,6,7,8}