✨ Best Answer ✨
先試著把這個函數整理成f(y)=x
然後把x跟y值互換（因為反函數的定義f(x) = y <> f^-1(y) = x
這樣就是反函數了
感謝你～
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✨ Best Answer ✨
先試著把這個函數整理成f(y)=x
然後把x跟y值互換（因為反函數的定義f(x) = y <> f^-1(y) = x
這樣就是反函數了
感謝你～
Users viewing this question
are also looking at these questions 😉
請問有詳細的過程嗎不太會整理