Question

Solve( D² + D + 1)y= e^3x​

Answer 1

Answer:

roots contributes the basic solutions e2x cos(3x),e2x sin(3x), xe2x cos(3x) and xe2x sin(3x). ... Write the equation as P(D)y = e2x, where P(D) = D2 − 2D + 1. Move the ... 1 = z = e−2xy, we have y = e2x. The general