The Standard Deviants: The Twisted World of Trigonometry, Part 2(2007)

Part 2 starts off with a quick review of graphing as well as sine, cosine and tangent. From there, this video charts new territory as we dive into amplitude, curves, double-angle formulas, sum-to-product-formulas and identities. Using computer graphics and animation, the Standard Deviants illustrate these complicated concepts far better than any blackboard!