math What is Linear Algebra? With most math courses, you can't really know what it's about until you're in it. This, hopefully, will express some of what Lin Al is about before you decide to take it. Each context assumes you've taken the corresponding course, be it Algebra I,
math Trigonometry Formula Sheet This post contains the info I pretty much reiterate verbatim for every trigonometry (or calculus, etc.) student I've tutored. There will be a future post on how to use this one. Definitions These should be the only things you have to accept without reason.