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The indicated functions are known linearly independent solutions of the associated homogeneous differential equation on (0,...

The indicated functions are known linearly independent solutions of the associated homogeneous differential equation on (0, ∞). Find the general solution of the given nonhomogeneous equation.

x2y'' + xy' + y = sec(ln(x))

y1 = cos(ln(x)), y2 = sin(ln(x))

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