以知全集U={2,4,1-a},A={-1},CuA={2,a2-a+2},则实数a=_________
以知全集U={2,4,1-a},A={-1},CuA={2,a2-a+2},则实数a=_________
已知全集U={2,3,a2-a-1 },A={2,3},若CUA={1},则实数a的值是______.
已知全集U={2,4,1-a},A={-1},CuA={2,a*a-a+2},则实数a=
全集U={2,3,a2+2a-3 },A={|a+7|,2},CUA={5},则实数a=______.
设全集u={2,3,a²+2a-3},A={2a-1|,2},CuA={5},则实数a等于?
设全集U={1,2,x²-2},A={1,x},则CuA=
设全集U={1,2,3,4,5},其子集A={5,1}则A∩CUA
已知全集U={-2,1,a+3,a^2-a-2},(a∈R)A∈U,CuA={4},求集合A
已知全集U={-1,2,3},A={3,a-a+2},CuA={-1},求a的值
已知全集U={2,3,a-2a-3},A={2,|a-7|},CuA={5},则实数a=( )
设全集U={3,4,a²+2a-3},集合A={a+1,2a},CUA={5},求a的值,
已知集合A=[-1,2)对于下列全集U分别求CuA: