设全集A={ x | log2(x+1)<2 )},B= {x| (1/2)2x-3>(1/2)x+2 }.求CRA.求...设全集A={ x | log2(x+1)<2 )},B= {x| (1/2)2x-3>(1/2)x+2 }.求CRA.求若集合C ={x| x-a<0 },且C真子集B,求实数a的
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设全集A={x|log2(x+1)<2)},B={x|(1/2)2x-3>(1/2)x+2}.求CRA.求...设全集A={x|log2(x+1)<2)},B={x|(1/2)2x-3>(1/2)x+
设全集A={ x | log2(x+1)<2 )},B= {x| (1/2)2x-3>(1/2)x+2 }.求CRA.求...设全集A={ x | log2(x+1)<2 )},B= {x| (1/2)2x-3>(1/2)x+2 }.求CRA.求若集合C ={x| x-a<0 },且C真子集B,求实数a的
设全集A={ x | log2(x+1)<2 )},B= {x| (1/2)2x-3>(1/2)x+2 }.求CRA.求...
设全集A={ x | log2(x+1)<2 )},B= {x| (1/2)2x-3>(1/2)x+2 }.求CRA.求若集合C ={x| x-a<0 },且C真子集B,求实数a的取值范围.)
设全集A={ x | log2(x+1)<2 )},B= {x| (1/2)2x-3>(1/2)x+2 }.求CRA.求...设全集A={ x | log2(x+1)<2 )},B= {x| (1/2)2x-3>(1/2)x+2 }.求CRA.求若集合C ={x| x-a<0 },且C真子集B,求实数a的
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A={ x | log2(x+1)<2 )},
y=log2x为单调函数
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B 是1/2?0.5?
设全集A={ x | log2(x+1)<2 )},B= {x| (1/2)2x-3>(1/2)x+2 }.求CRA.求...设全集A={ x | log2(x+1)<2 )},B= {x| (1/2)2x-3>(1/2)x+2 }.求CRA.求若集合C ={x| x-a<0 },且C真子集B,求实数a的
设全集U是实数集R,M={x|x^2>4},N={x|log2(x-1)
设全集U=R,A={x|1/x
设全集为R.A={x||x - 1 |
已知R为全集,A={x丨log2(3-x)≤2},B={x丨5/x+2≥1} ,求补集Cr(A∩B),
设全集U=R,解关于x的不等式:(x-1)的绝对值+a-1>0 (x∈R)
设全集U=R.A={X|X的(-1)次
设全集U=R,集合A={X|-1
设全集U=R,集合A={x|-1
设全集U=R,集合A={x/1
设全集U=R,A={x|-1
设全集U=R,集合A=(x|-1
设全集U=R,集合A={x|-1
设全集U=R,集合A=(X|-1
设全集R,A=X
设全集R.A={X/3
设全集为R,且A={x|y=1/log2 x},B={y|y=2^1/-x^2+2x},则A∩(CR B)=
设全集U=R,集合A={X/Y=log2底(-X方+2x+3)},B={Y/Y=2的X方,(-无穷,2)},C={X/a小于X小于2a-1} (1) 求(1) 求A B(2) 若C包含于(A交B),求实数a的取值范围