Page:Calculus Made Easy.pdf/90

 Proceeding as in example (1) above, we get

(6) Differentiate $$y=\sqrt{\dfrac{x^3}{1+x^2}}$$.

We may write this

Differentiating $$(1+x^2)^{-\frac{1}{2}}$$, as shown in example (2) above, we get

so that