不等式2+x/x-1<0解集为A,关于x的不等式(1/2)的2x方>2的-a-x(a属于R)解集为B,全集U=R,求使CuA=B的实...

不等式2+x/x-1<0解集为A,关于x的不等式(1/2)的2x方>2的-a-x(a属于R)解集为B,全集U=R,求使CuA=B的实数a的取值范围

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第1个回答  2011-11-19
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