Find the general solution to the differential equation: d^2y/dx^2 - 8 dy/dx +16y = 2x

d2y/dx2 - 8 dy/dx +16 y = 2x Auxiliary Equation: m2 - 8m +16 = 0 (m - 4)= 0 m = 4  (repeated root) Complimentary function: y = (A+Bx)e4x Particular integral: try yp = ax + b dyp/dx = a d2yp/dx2 = 0 0 - 8(a) + 16(ax + b) = 2x -8a + 16ax +16b = 2x Equate x1 terms: 16a = 2          => a = 1/8 Equate x0 terms: -8a + 16b = 0     => b = a/2 = 1/16 yp = 1/8 x + 1/16 ANSWER: (A+Bx)e4x + 1/8 x + 1/16

OF

Related Further Mathematics A Level answers

All answers ▸

Differentiate w.r.t x the expression arccos(x).


Find the eigenvalues and eigenvectors of A = ([2, 0 , 0], [0, 1, 1], [0, 3, 3])


find the sum of r from 0 to n of : 1/((r+1)(r+2)(r+3))


Find the general solution to y''+2y'-3y=x