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**Aryth** Use variation of parameters to obtain a particular solution of the non-homogeneous problem

$\displaystyle \frac{d^2 y}{dx^2} + p(x)\frac{dy}{dx} + q(x)y(x) = \frac{1}{x}$

With y(1) = 1, y'(1) = -1, x > 0

With the fundamental (meaning it solves the homogeneous equation) set:

$\displaystyle \{y_1(x), y_2(x)\} = \{x, 1 - x\}$

I cannot get this problem started as I do not remember how to use variation of parameters, if someone could give me a head start or an example it would be much appreciated.