Question

I am looking for the first derivative of (t^2-1)/sq.rt(t+2)

Answer 1

I would use the quotient rule.

Answer 2

\[2t(\sqrt(t+2}- (t^2-1)1/2(t+2)^-1/2*1/ (\sqrt{t+2)^2\]

Answer 3

Sweet! You can also simplify.