# How do you find the derivative of # f(x)= 2/(1+x^2) #?

##### 1 Answer

Oct 29, 2016

Now use implicit differentiation...

Divide expressions on both sides of the equation by 2...

Multiply expressions on both sides of the equation by -1...

Now multiply expressions on both sides of the equation by y^2...

Don't forget the real value of y...

Clean up the final result...

Which means that...