已知f(x)=log3(x^2-4mx+4m^2+m+1/(m-1)) m∈R M={m|m>1}(1)求证:当m∈M时,f(x)对x∈R均有意义;反之,若f(x)f(x)对x∈R都有意义,则m∈M⑵当m∈M时,求f(x)的最小值
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![已知f(x)=log3(x^2-4mx+4m^2+m+1/(m-1)) m∈R M={m|m>1}(1)求证:当m∈M时,f(x)对x∈R均有意义;反之,若f(x)f(x)对x∈R都有意义,则m∈M⑵当m∈M时,求f(x)的最小值](/uploads/image/z/10198303-7-3.jpg?t=%E5%B7%B2%E7%9F%A5f%28x%29%3Dlog3%28x%5E2-4mx%2B4m%5E2%2Bm%2B1%2F%28m-1%29%29+m%E2%88%88R+M%3D%7Bm%7Cm%3E1%7D%281%29%E6%B1%82%E8%AF%81%3A%E5%BD%93m%E2%88%88M%E6%97%B6%2Cf%28x%29%E5%AF%B9x%E2%88%88R%E5%9D%87%E6%9C%89%E6%84%8F%E4%B9%89%3B%E5%8F%8D%E4%B9%8B%2C%E8%8B%A5f%28x%29f%EF%BC%88x%EF%BC%89%E5%AF%B9x%E2%88%88R%E9%83%BD%E6%9C%89%E6%84%8F%E4%B9%89%2C%E5%88%99m%E2%88%88M%E2%91%B5%E5%BD%93m%E2%88%88M%E6%97%B6%2C%E6%B1%82f%EF%BC%88x%EF%BC%89%E7%9A%84%E6%9C%80%E5%B0%8F%E5%80%BC)
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