試卷名稱:104年 - 104 國立中正大學轉學生招生考試試題_共同科目:微積分#121936
年份:104年
科目:研究所、轉學考(插大)-微積分
4. Let C be a smooth curve defined by r(t) and C is also represented as r(s) in terms of the arc length parameter s. Which of the following must be true?
(A) dr/ds = r'(t)dt
(B) the unit tangent T =
(C) the unit normal N =
(D) None of the above