[微積] 羅必達法則
一題很簡單的題目:
kx^2-x+1-k
f(x)=---------------- if x不等於1
x-1
=-3 if x=1
若函數在x=1處連續,k=? Ans :-1
我的問題是為何不可以用羅必達法則解這個問題?
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