Question

what is the derivative of -2x/(1+x^2)^2

Answer 1

\[\frac{dy}{dx} = \frac{-2(1+x ^{2})^{2}+8x ^{2}(1+x ^{2})}{(1+x ^{2})^{4}}\]
using quotient rule
f'g - fg'/g^2

Answer 2

thank u so much

Answer 3

your welcome