设全集U={2,3,a^2+2a-3},A={2a-1的绝对值,2},CUA={5},求实数a的值?

设全集U=R,集合A={xl-2 设全集U=R,A={x|2 设全集U=R,集合A={x|-2 设全集U=R,A={x|-2 设全集U=R,A{x|2 设全集U=R,A={x||2x-3| 设全集U=｛2,3,a²+2a-3｝……设全集U=｛2,3,a²+2a-3｝,A=｛a+1|,2﹜,A的补集=﹛5﹜,求a 设全集U={2,3,5},A={|a-5|,2},cuA={5},则a的值是? 设全集U={2,3,5},A={2,|a-5|},CuA={5},则a的值为 设全集U={1,2,3,4,5},A={2,3,4},则C∪A= 设全集U=｛1,2,3,4,5｝,其子集A=｛5,1｝则A∩CUA 设全集U=R,M={x|3a 设全集U=R,集合A={X|-3 设全集U=R集合A={-3 设全集U=R,集合A={X|-3 设全集U={2,3,a^2+2a-3}A={|2a-1|,2},CuA={5} 求集合{a,a^2}的子集个数 设全集为U,A={x||2x+1|≤3},B={x|-x^2+2x 设全集U=R,A={X||X|>2},B={X|X^2-4X+3