問題詳情
2.設f (x)的導函數f'(x)的圖形為如右圖所示的拋物線，則下列敘述正確的有哪些？
(A) f {2}是f (x)的極小值
(B)對任意 1 ≤ x ≤ 2，f (x) ≤ 0
(C) f (19) ＜ f (21)
(D) f (x)圖形反曲點為
(E)
＞ f (20)
(A) f {2}是f (x)的極小值
(B)對任意 1 ≤ x ≤ 2，f (x) ≤ 0
(C) f (19) ＜ f (21)
(D) f (x)圖形反曲點為
(E)
＞ f (20)
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)
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