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Question

Mathematics Question on Solutions of Differential Equations

The general solution of the differential equation y"+y = 6sin x is:

A

y(x) = C1ex + C2e-x + 3x cosx

B

y(x) = C1ex + C2e-x - 3x cosx

C

y(x) = C1cosx + C2 sinx - 3sinx

D

y(x) = C1cosx + C2 sinx - 3x cosx

Answer

y(x) = C1cosx + C2 sinx - 3x cosx

Explanation

Solution

The correct option is(D):y(x) = C1cosx + C2 sinx - 3x cosx.