设全集U=R,集合A={x丨x≤1},集合B={X丨0
问题描述:
设全集U=R,集合A={x丨x≤1},集合B={X丨0
答
∵UA={x丨x>1}UB={X丨x≤0或x≥2} ∴(UA)∩(UB)={x丨x≥2} (UA)∪(UB)={x丨x≤0或x>1}
设全集U=R,集合A={x丨x≤1},集合B={X丨0
∵UA={x丨x>1}UB={X丨x≤0或x≥2} ∴(UA)∩(UB)={x丨x≥2} (UA)∪(UB)={x丨x≤0或x>1}