Re: [微分]三角反函數
-1
設g(x)=f (x)
將g(x)代入f(x)=2tanx
-1
f(f(x))=2tang(x)=x
x
tang(x)=------
2
-1 x
g(x)=tan ------
2
請問這樣做正確嗎??謝謝
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