a maths 數學題 4~5

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)

2008-01-22 4:42 am
參考: Myself~~~
2008-01-22 4:38 am
y=xsin?
o
i send to you emil lo
參考: me


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