1. ## Differentials

Can anyone help.Im stuck on this question.

Using differentials find $\frac{dy}{dx}$ when $\frac{y}{x}-ln(x)=ln(c)$

2. ## Re: Differentials

Hey hacker804.

What exactly do you mean by differentials?

You can find the derivative by re-arranging y as a function of x (and constants) and then taking the derivative or you can use implicit differentiation and get dy/dx on LHS with other expression on RHS.

3. ## Re: Differentials

I think the differential which is defined as $dy=f^{'}(x)dx$

4. ## Re: Differentials

y - x Ln (x) = x Ln (c) ; y = x Ln (x) + x Ln (c), Now differentiate w r t x we get
dy/dx = Ln (x) + 1 + Ln (c)
That is it
Originally Posted by hacker804
Can anyone help.Im stuck on this question.

Using differentials find $\frac{dy}{dx}$ when $\frac{y}{x}-ln(x)=ln(c)$