3x0x的知识精选

函数f(x)=3x(0<x≤2)的反函数的定义域为                           ...
问题详情:函数f(x)=3x(0<x≤2)的反函数的定义域为                             ()A.(0,+∞)                          B.(1,9]   C.(0,1)          ...
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