作者kobe7 (j.j)
看板trans_math
标题[微分]台师大99年物理系第８题
时间Sun Nov 28 19:55:21 2010
99年师大物理系转学考
Let f(x)=[x^2/3](x-1)Which of following is NOT true?
(A)f has an inflection point at x=1/5
(B)f has a relative maximum at x=0
(C)f has a relative minimum at x=2/5
(D) f(x)逼近 负无限大as X逼近 负无限大
我算Ａ的答案应该是-1/5
但Ｂ好像也是错的
想请教一下大家
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