I used an image because I already had the format done:
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Are you familiar with the differential calculus? You need to look up the "Quotient Rule". Also, the notation is lacking. "130/" is no good.
I've learned the quotient rule. I don't understand what you mean by that :S I've tried solving the problem by using the quotient rule but I ended up with a very different answer than from the back.
Thanks - I did it again and it worked. I derived in wrong in the first place. Thanks.
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