[微分] 97交大
|x-2008|
Evaluate lim ----------------
x→2008 |2008-x|
-(x-2008) 2008-x
左極限=lim -------------- = ----------- = 1
2008-x 2008-x
x-2008 x-2008
右極限=lim ------------ = ---------- = 1
-(2008-x) x-2008
上面我解出來答案是1不過解答卻是-1可以跟我說哪裡錯了嗎?? 謝謝
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