CAPE Pure Mathematics Unit 2 · May/June 2016 · Paper 1 · Question Q42

A suitable integrating factor for the solution of the differential equation \frac{dy}{dx} + \frac{2y}{x} = \frac{1}{x} is

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