Question

find the solution $\small \psi$ of the inhomogeneous system for y" +p(t)y' +q(t)y = f(t), a second order scalar equation with p, q, f continuous on interval I,

$\psi \left ( t \right )=\phi \left ( t\int_{to}^{t} \right )\phi ^{-1}\left ( s \right )g\left ( s \right )ds$

for which $\small \psi$(t_o ) = 0, t_o on I

Answer 1

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