問題詳情
6.設f (x) = | x | + | x + 1 |，則f '(1)之值為
(A)
(B)0
(C)
(D)不存在
(A)
(B)0
(C)
(D)不存在
參考答案
答案：C
難度：適中0.5
統計：A(0),B(0),C(0),D(0),E(0)
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