Differential Calculus, Differential Equations, Calculus, Mathematics, Physics.
Coefficients Undetermined Coefficients — Superposition Approach* Undetermined Coefficients — Annihilator Approach Auxiliary Equation: y’’ + y’ + … = 0 y c: complementary function y p: particular solution y p = u1(x)cosx + u2(x)sinx u1(x) = negative integral of y2 f(x) / w(x) dx u1(x) = integral of