设函数y=f(x)是定义在R+上的减函数,并且满足f(xy)=f(x)+f(y),f(1/3)=1(1)f(1)的值(2)如果f(x)+f(2-x)<2,求x的取值范围
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![设函数y=f(x)是定义在R+上的减函数,并且满足f(xy)=f(x)+f(y),f(1/3)=1(1)f(1)的值(2)如果f(x)+f(2-x)<2,求x的取值范围](/uploads/image/z/1996964-44-4.jpg?t=%E8%AE%BE%E5%87%BD%E6%95%B0y%3Df%28x%29%E6%98%AF%E5%AE%9A%E4%B9%89%E5%9C%A8R%2B%E4%B8%8A%E7%9A%84%E5%87%8F%E5%87%BD%E6%95%B0%2C%E5%B9%B6%E4%B8%94%E6%BB%A1%E8%B6%B3f%28xy%29%3Df%28x%29%2Bf%28y%29%2Cf%281%2F3%29%3D1%281%29f%281%29%E7%9A%84%E5%80%BC%EF%BC%882%EF%BC%89%E5%A6%82%E6%9E%9Cf%28x%29%2Bf%282-x%29%EF%BC%9C2%2C%E6%B1%82x%E7%9A%84%E5%8F%96%E5%80%BC%E8%8C%83%E5%9B%B4)
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