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#1 2012-08-20 16:51:40

Please help me
Guest

Differential calculus

I need to find dy/dx from this equation:  x^5+9y^2=15 . I can first take y to one side and then differentiate it.but i have heard that i can differentiate it in this form too.can you please explain how?

#2 2012-08-20 17:02:35

bobbym
bumpkin
From: Bumpkinland
Registered: 2009-04-12
Posts: 109,606

Re: Differential calculus

Hi Please help me;

You use something called implicit differentiation. For this problem you will need a simple formula.

Now you do your problem term by term. Doing x^5 then 9y^2 and then15.

Of course the derivative of 15 is 0. So now combine all the terms.

Solve now for dy / dx.


In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.

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