f(x)={ 1/2x-1 (x≥0)
{1/x,(x
设函数f(x)=大括号上是1/2x-1,x≥0下是1/x,x＜0,若f（a）=a,则实数a的值为
设函数f(x)=大括号上是1/2x-1,x≥0下是1/x,x＜0,若f（a）=a,则实数a的值为
我把题目写完整：设函数f(x)=(1/2)x-1(x≥0) 1/x(x
我把题目写完整：设函数f(x)=(1/2)x-1(x≥0) 1/x(x
数学人气：355 ℃时间：2020-01-28 01:31:47
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