Variation of Parameters (introduction & idea)

We will discuss how to solve a non-homogeneous second-order linear differential equation with constant coefficients, i.e. ay''+by'+cy=f(t), by using the variation of parameters method. See how to solve y''+y=tan(t) with this method, please see here https://www.youtube.com/watch?v=H8DH7KwcuUQ Check out my differential equation playlists for more lessons and tutorials: https://www.youtube.com/@blackpenredpen/playlists?view=50&sort=dd&shelf_id=5 🍎 Support me on patron https://www.patreon.com/blackpenredpen #differentialequation #math #blackpenredpen