Friday

April 18, 2014

April 18, 2014

Posted by **W** on Wednesday, November 30, 2011 at 10:28pm.

- Calculus -
**Reiny**, Wednesday, November 30, 2011 at 10:35pmx^2 + 2lny = y

2x + 2/y (dy/dx) = dy/dx

times y

2xy + 2 dy/dx = y dy/dx

2xy = y dy/dx - 2 dy/dx

2xy = dy/dx (y - 2)

dy/dx = 2xy/(y-2)

- Calculus -
**W**, Wednesday, November 30, 2011 at 10:51pmThank you! Now I understand that I should've multiplied by y instead of moving the whole "2/y (dy/dx)" to the other side of the equation and then factor the dy/dx out. I can't believe how such a simple manuever can make the problem so much easier to solve. Thanks again!

**Related Questions**

calculus - I am working on this problem and having some trouble. We're supposed ...

calculus - I am learning derivatives and I despise having to use the definition ...

Language Arts - having some trouble deciding between which verb completes the ...

Calculus: Derivatives - I'm having trouble understanding what derivatives in ...

Pre-Calculus - I'm having trouble with this problem because I'm not sure what to...

calculus - Lim (1+(a/x))^(bx) x->infinity I'm having a lot of trouble with ...

Calculus - Area of rectangle = xy = x(4r^2 - x^2) Take the derivative. I am ...

Pre Calculus - Can someone help me solve this problem: cos^2x + 5cosx - 2= 0 I ...

Calculus - I am having a lot of trouble doing these types of problems. Can ...

Discrete Mathematics - I am having trouble using modus ponens and all the rules ...