1.f(x)=log以1/2为底x的对数,当x∈[a,a^2]时,函数的最大值比最小值大3,则实数a=2.已知f(x)=3^-1/3^+1,则f^-1(1/2)=3.(lg2)[log以1/2为底1/4的对数)^-1+(log以根号5为底2的对数)^-1]=
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![1.f(x)=log以1/2为底x的对数,当x∈[a,a^2]时,函数的最大值比最小值大3,则实数a=2.已知f(x)=3^-1/3^+1,则f^-1(1/2)=3.(lg2)[log以1/2为底1/4的对数)^-1+(log以根号5为底2的对数)^-1]=](/uploads/image/z/1003113-9-3.jpg?t=1.f%28x%29%3Dlog%E4%BB%A51%2F2%E4%B8%BA%E5%BA%95x%E7%9A%84%E5%AF%B9%E6%95%B0%2C%E5%BD%93x%E2%88%88%5Ba%2Ca%5E2%5D%E6%97%B6%2C%E5%87%BD%E6%95%B0%E7%9A%84%E6%9C%80%E5%A4%A7%E5%80%BC%E6%AF%94%E6%9C%80%E5%B0%8F%E5%80%BC%E5%A4%A73%2C%E5%88%99%E5%AE%9E%E6%95%B0a%3D2.%E5%B7%B2%E7%9F%A5f%28x%29%3D3%5E-1%2F3%5E%2B1%2C%E5%88%99f%5E-1%281%2F2%29%3D3.%28lg2%29%5Blog%E4%BB%A51%2F2%E4%B8%BA%E5%BA%951%2F4%E7%9A%84%E5%AF%B9%E6%95%B0%29%5E-1%2B%28log%E4%BB%A5%E6%A0%B9%E5%8F%B75%E4%B8%BA%E5%BA%952%E7%9A%84%E5%AF%B9%E6%95%B0%29%5E-1%5D%3D)
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