Question

The general solution of the equation y" + 4y = 6cosx is​

Answer 1

Answer:

The general solution of the equation is

y=cos2x + sin2x + 2cosx

Step-by-step explanation:

As this equation is Non-homogenous

so we solve by using this relation

Y = Yc + Yp

As yc is the complementary solution

and yp is the particular solution

To solve Complementary solution

D² + 4 =

D² = -4

D = +-2i