2021
= 2021
{scope}
{title2=A10285W1}
Source paper: https://www.whatdotheyknow.com/request/oxford_physics_past_papers_2/response/2340696/attach/9/Physics%20Papers%202020.pdf?cookie_passthrough=1
All questions and optional branches are covered, including the inline Roman parts of question 8. Real and complex solution domains and the limitations of an integrating-factor reduction are stated explicitly.