# Derivatives and implicit differentiation

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Find the first and second derivative for for the next

2. z=2/(1+x^2)

3. f(x) = (x-1)/(x+1^2)

find dy/dx by implicit differentiation

1. square root of (2x) + y^2 = 4

https://brainmass.com/math/derivatives/derivatives-implicit-differentiation-107573

#### Solution Summary

This provides examples of working with derivatives and implicit differentiation. The square root of a function is solved.

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