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November 3rd, 2010, 07:39 AM   #1
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Questions in derivatives

Hi all


my answer

a ) = x^2cosx + 2xsinx -2xsinx 2xcosx
b) 4sinx/(cosx)^2 + -sex2x/(tanx)^2
c) sec2x/(1=tanx)^2

---------------------------------

part 2



a ) Qcosx+sinQ+cosQ
b)xtan-2x^-1+7x
c) one derivativ = -kmq^-2+h/2
second derivativ = 2kmq^-2
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November 3rd, 2010, 11:14 AM   #2
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Re: Questions in derivatives

Part 1

1.

a)



b)



c)



2.




Part 2

1.



2.



3.


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November 3rd, 2010, 09:25 PM   #3
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Re: Questions in derivatives

Thanks
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