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February 7th, 2013, 12:06 AM   #1
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mathematics Q 11

Hi all

Can please check my answer for Q11

Here are questions :

http://www2.0zz0.com/2013/02/07/08/764110924.jpg

my answer for 11

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February 7th, 2013, 03:04 PM   #2
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Re: mathematics Q 11

Hello, r-soy!

Your algebra got tangled . . .


Quote:

e^{^x}\,-\,1)\sec^{^2}y\,dy \;=\;3e^{^x}\tan y \,dx" />

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February 8th, 2013, 02:31 AM   #3
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Re: mathematics Q 11

thanks so much
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