A. Maths ( Differentiation)
回答 (1)
2007-10-24 3:06 am
✔ 最佳答案
d/dx (2 開方 x / x-1) = (x+1) / (開方 x (x-1)sqr)d/dx (2 開方 x / x-1) at (x=4) = 5 / 18
when x = 4, y = 4 /3
Equation of tangent:
y-4/3 = 5/18(x-4)
=> 5x-18y+4=0
收錄日期: 2021-04-23 17:21:42
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https://hk.answers.yahoo.com/question/index?qid=20071023000051KK02324