CAPE Pure Mathematics Unit 2 · May/June 2017 · Paper 1 · Question Q43
A suitable integrating factor for the solution of the differential equation
\frac{dy}{dx} + \frac{2y}{x} = \frac{1}{x}
is
- (A)
2x - (B)
\ln 2x - (C)
x^2 - (D)
e^{2x}
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