Hi,

I am really stuck on how to finish each of these sums, I can only get so far and I am stuck.

The questions are as followsa) Differentiate each of the following functions, identifying any general

rules of calculus that you use, and simplifying your answers as far as

possible

(i) f(x) = e^{5x}sec(x^{3}) (−1/2pi < x^{3 }< 1/2pi)

(ii) f(x) = ( ln(1 +x^{2})) / (arctan x) (x > 0)

This is what I have attempted so far:

Any help would be greatly appreciated