Differential equation Solve: (D2+D)y=cos x /Non-Homogeneous Methodby Sky Differential equation Solve Distinct Real Roots: Non-Homogeneous Method (D2+D)y=cos x Leave a Reply Cancel replyYour email address will not be published. Required fields are marked *Name * Email * Website Comment * Save my name, email, and website in this browser for the next time I comment.