设U=R,A={x|x>=1},B{x|0
设全集U=R,A={x|x+1≥0},B={x|x
设U=R,A={x|x>=1},B{x|0
设全集U=R,A={x|x>1},B={x|x+a
设全集U=r,A{x|x>1} B{x|x+a
设全集U=R,A={x|x^2-5x-6>0},B={x||x-5|
设全集为R,集合A={x | |x-1| ≥2 },B={x |x>1},A U B、A U B、Cu A、Cu B分别
设全集U=R,集合A={X|-1小于等于x小于等于3},b={x|0
设全集U=R,集合A={x|0≤x≤3},B={x|1
设全集U=R,集合A={x|-1≤x≤3},B={x|0
设全集U=R,集合A={x丨x≤1},集合B={X丨0
设全集U=R,集合A={x丨x>1},B={x丨x+a(要过程)
设全集U=R,集合A={x丨x>1},B={x丨x+a