a maths 數學題 4~5

👨🏻‍🏫 學術台數學

fsl

2008-01-22 4:19 am

4. Evaluate the first derivative of the following function using product rule:
(i) y=xsin(x)
(ii) y=xsin(x)(e^x)
5. If x^2+4xy+3y^2=100,find
(i) dy/dx
(ii) d^2y/dx^2

更新1:

可否幫我回答http://hk.knowledge.yahoo.com/question/?qid=7008012106285

回答 (2)

Audrey Hepburn

2008-01-22 4:42 am

✔ 最佳答案

Using product rule to find the first derivative of the follows~~~

圖片參考：http://i182.photobucket.com/albums/x4/A_Hepburn_1990/A_Hepburn01Jan212040.jpg?t=1200919303

圖片參考：http://i182.photobucket.com/albums/x4/A_Hepburn_1990/A_Hepburn02Jan212041.jpg?t=1200919313

參考: Myself~~~

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sam

2008-01-22 4:38 am

y=xsin?
o
i send to you emil lo

參考: me

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