大师作文网2log^2(1／2)X+5log(1／2)X-3＜0,求函数f(x)=[㏒(2)X／8]·[㏒^(1／2）4／X]的值
![2log^2(1／2)X+5log(1／2)X-3＜0,求函数f(x)=[㏒(2)X／8]·[㏒^(1／2）4／X]的值](/uploads/image/z/19369956-12-6.jpg?t=2log%5E2%281%EF%BC%8F2%29X%2B5log%281%EF%BC%8F2%29X-3%EF%BC%9C0%2C%E6%B1%82%E5%87%BD%E6%95%B0f%28x%29%3D%5B%E3%8F%92%282%29X%EF%BC%8F8%5D%C2%B7%5B%E3%8F%92%5E%281%EF%BC%8F2%EF%BC%894%EF%BC%8FX%5D%E7%9A%84%E5%80%BC)
lg(7*2^x+8)>=log(√10) 2^x,求函数f(x)=log(1/2)x*log(1/2)x/4的最小值
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