# Math Help - Implicit Differentiation

1. ## Implicit Differentiation

Find the first and second derivative of x^(1/2)+y^(1/2)=1. I can't quite remember what to do..

2. Exponent Rule
Chain Rule
Algebra

Done

x^(1/2)+y^(1/2)=1

(1/2)x^(-1/2) + (1/2)y^(-1/2) * y' = 0

You do the algebra. I'm going to guess it's easier to start from here, before the algebra, to find the second derivative.