How Do You Isolate dy/dx in Implicit Differentiation?

physicsernaw
Messages
41
Reaction score
0

Homework Statement



Calculate the derivative with respect to x:
x/y + y/x = 2y

Homework Equations



n/a

The Attempt at a Solution



I end up getting the right answer, but what I want to know is how to isolate dy/dx to one side after implicitly differentiating. I have tried differentiating the LHS sum by its terms, and also tried getting the common denominator first of the LHS and differentiating that, but I can't isolate dy/dx.

(I understand that I could isolate y instead and take the derivative, but I wanted to know if there was a way to isolate dy/dx to one side after implicitly differentiating).
 
Physics news on Phys.org
physicsernaw said:

Homework Statement



Calculate the derivative with respect to x:
x/y + y/x = 2y

Homework Equations



The Attempt at a Solution



I end up getting the right answer, but what I want to know is how to isolate dy/dx to one side after implicitly differentiating. I have tried differentiating the LHS sum by its terms, and also tried getting the common denominator first of the LHS and differentiating that, but I can't isolate dy/dx.

(I understand that I could isolate y instead and take the derivative, but I wanted to know if there was a way to isolate dy/dx to one side after implicitly differentiating).
What is your result upon implicitly differentiating?

It shouldn't be all that difficult to isolate dy/dx .
 
There are two things I don't understand about this problem. First, when finding the nth root of a number, there should in theory be n solutions. However, the formula produces n+1 roots. Here is how. The first root is simply ##\left(r\right)^{\left(\frac{1}{n}\right)}##. Then you multiply this first root by n additional expressions given by the formula, as you go through k=0,1,...n-1. So you end up with n+1 roots, which cannot be correct. Let me illustrate what I mean. For this...
Back
Top