x Turn on thread page Beta
 You are Here: Home >< Maths

# diffrentiation watch

1. x^2 - y^3=sin(y) Evaluate Dy/Dx at point (0,0)

im not sure what i have to do here....anyone help?
2. Move the y^3 across, square root both sides, take dx/dy and find its reciprocal.
3. Here's a thought: perhaps begin by implicitly differentiating the equation?
4. (Original post by Bobifier)
Move the y^3 across, square root both sides, take dx/dy and find its reciprocal.
I would be cautious about square-rooting an expression that can take negative values...
5. (Original post by Kolya)
I would be cautious about square-rooting an expression that can take negative values...
Even if it's value is not negative at the required point?

TSR Support Team

We have a brilliant team of more than 60 Support Team members looking after discussions on The Student Room, helping to make it a fun, safe and useful place to hang out.

This forum is supported by:
Updated: January 15, 2010
Today on TSR

### Loughborough better than Cambridge

Loughborough at number one

Poll
Useful resources

### Maths Forum posting guidelines

Not sure where to post? Read the updated guidelines here

### How to use LaTex

Writing equations the easy way

### Study habits of A* students

Top tips from students who have already aced their exams