differentiation(2)
回答 (3)
2011-01-14 6:57 pm
✔ 最佳答案
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參考: ME
2011-01-14 10:21 pm
For sure MoonMoon is kidding us.
2011-01-14 7:20 pm
Method 1
y = 2x V(2x+3)
dy/dx = 2 V(2x+3) + 2x * 2/ 2V(2x+3)
= 2 V(2x+3) + 2x / V(2x+3)
= 2 (y/2x) + 2x / (y/2x)
= y/x + 4x^2 / y
= 4x^2 / y + y/x
2011-01-14 11:21:19 補充：
MoonMoon, 你係咪玩野??
y = 2x V(2x+3)
dy/dx = 2 V(2x+3) + 2x * 2/ 2V(2x+3)
= 2 V(2x+3) + 2x / V(2x+3)
= 2 (y/2x) + 2x / (y/2x)
= y/x + 4x^2 / y
= 4x^2 / y + y/x
2011-01-14 11:21:19 補充：
MoonMoon, 你係咪玩野??
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原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20110114000051KK00265