# How do you differentiate #x^2+y^2=2xy#?

##### 1 Answer

Jul 16, 2015

Saikiran Reddy and Kwasi F. give excellent solutions to this. The answer,

#### Explanation:

For

That's the same as the derivative of a linear function with slope,

If we have

The we must also have:

Factoring gets us:

And the only way for that to happen is to have:

So

and

(Which we already knew by differentiating, but this may be of interest as well.)