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高一函数已知X满足不等式2(log0.5x)^2+7log0.

2008-10-20 09:53:45不***
已知X满足不等式2(log0.5 x)^2 + 7log0.5 x +3<=0,求函数f(x)=(log2 x/4)(log2 x/2)高一函数。已知X满足不等式2(log0.5x)^2+7log0.5x+3=0,求函数f(x)=(log2x/4)(log2x/2):由2(log0.5 ?

最佳回答

  • 由2(log0.5 x)^2 + 7log0.5 x +3<=0,得-3<=log0.5 x<=-1/2 所以根号2<=x<=8 f(x)=(log2 x/4)(log2 x/2)=(log2 x-2)(log2 x-1)=?
    2008-10-20 11:39:37
  • 很赞哦! (132)