I have found seventhroot's 3u notes quite helpful since they explain things in a really concise manner, meaning that they are great for revising a concept that you're slightly rusty on before hitting some questions to study for a test or something like that. I was just wondering if anyone knew...
Picked it because I formulated a true appreciation for Maths in the last term of Year 11, and it has been brilliant so far. Complex numbers are awesome! :D