Greek letters, arcane math, and proofs. Congratulations, math teachers, you've hit the trifecta of the least student-friendly limits section ever! Seriously, if your teacher does the section (many don't), you can bet you're in for a rough semester. In this video I'll try and take the math out of this topic, 'cause oh boy does it need it!
If you do not have an account, you should get one, because it is awesome! You can save a playlist for each test or each chapter, and save your "greatest hits" into a "watch right before the final" list (not that we recommend cramming, but when in Rome...)