[分析] 反函數
因為這題是在An Introduction to Analysis
所以我列在分析
f(x)=3x-|x|+|x-2| E=R 求f-1 on f(E) 和找出 f(E)和f-1(E)
現在問題卡在我不會求有絕對值的反函數
謝謝大家orz
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