I know this has got something to do with the formula but i don't know how to do it. I tried using the chain rule but couldn't even figure it out. I need some pointers on how to do it.
Thanks for any help
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to differentiate it . Let
so I have:
But this is not the answer. I'm supposed to give so i don't know how the disappears.
Last edited by arze; August 19th 2009 at 12:06 AM.
Reason: wrong equation
Oh! ok, I see it now. Am I right?
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