問題詳情

3.下列哪些函數在x = 0處可微分？_____ 
(A)f (x) = x
(B)f (x) = |x|
(C)f(x) = x|x|
(D)f (x) =|x-1|
(E)

參考答案

答案：A,C,D,E
難度：適中0.5
統計：A(0),B(0),C(0),D(0),E(0)