设全集I={2,3,4},A={2,a,-3},CIA={4},则a=?
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设全集I={2,3,4},A={2,a,-3},CIA={4},则a=?
设全集I={2,3,4},A={2,a,-3},CIA={4},则a=?
设全集I={2,3,4},A={2,a,-3},CIA={4},则a=?
a=4
设全集I={2,3,4},A={2,a,-3},CIA={4},则a=?
设全集R.A={X/3
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
设全集为R,A={x|-2
题设全集U=R,A={X小于等于6}求:(1)A∩空集.A∪空集(2)A∩R,A∪R(3)全集A的补集(4)A∩(全集A的补集),A∪(全集A的补集)
寻个数学厉害点的人交我数学如题(1)设全集I={1,6},集合A={1,4},A∩B={1},CI(A∪B)={6},求集合B。(2)已知全集I={-1,a的2次方-a},A={-1,|a+1|},CiA={0},求a的值。(3)已知全集I={x|-3≤x≤3
设全集为R,集合A=[1/2,3],B={x|x^2+a
设全集I={2,3,5},A={2,|a-5|},CIA={5},求a的值希望步骤详细··
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I=R,A={x|x>3},B={x|x
设全集U={3,4,a²+2a-3},集合A={a+1,2a},CUA={5},求a的值,
设全集U={3,4,a平方+2a-3},集合A={a+1,2a},{5},求a的值
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