Question

What is the implicit derivative of `25=cosy/x-x`?

Answer 1

Remember to use the chain rule when differentiating the y-variable ...

Explanation:

Taking the derivative:

`0=[(x)(-siny)(y')-(cosy)(1)]/x^2-1`

Now, solve for `y'`

`y'=-[x^2+cosy]/(xsiny)`

hope that helped