Friday

November 28, 2014

November 28, 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!

**Answer this Question**

**Related Questions**

Calculus 1 - implicit differentiation - I do not understand implicit ...

Calculus 1 - implicit differentiation - I do not understand implicit ...

Calculus - Hi, I'm having trouble using implicit differentiation to determine dy...

Calculus: implicit differentiation - Find dy/dx by implicit differentiation 1. x...

calculus; implicit differentiation - Use implicit differentiation to find the ...

Implicit differentiation calculus - PLEASE HELP , I DON'T UNDERSTAND find dy/dx ...

Calculus [Implicit Differentiation] - If √x+√y=10 and y(16)=36, find...

Calculus - How do you use imlicit differentiation to differentiate e^(xy)? I ...

Calculus 1 Implicit differentiation - Help please help me understand what i am ...

Math - Calculus Question. - hey can someone explain to me the relationship ...