CAPE Pure Mathematics Unit 2 · May/June 2015 · Paper 1 · Question Q6

If f(x) = \ln 2x, then f'(x) =

1. (A)\frac{2}{x}
2. (B)\frac{1}{x^2}
3. (C)\frac{-2}{x}
4. (D)\frac{1}{x}