ABSTRACT
Why it is important to understand: Second-order differential equations of the form https://www.w3.org/1998/Math/MathML"> a d 2 y d x 2 + b d y d x + c y = 0 https://s3-euw1-ap-pe-df-pch-content-public-p.s3.eu-west-1.amazonaws.com/9781003124221/b3c02d5e-42bd-4ccd-9bc7-1767f1266fc3/content/math50_2.tif" xmlns:xlink="https://www.w3.org/1999/xlink"/>
