Mathematics Describing the Real World: Precalculus and Trigonometry

Trigonometric Identities (1x18)

Air date: Jun 16, 2011

An equation that is true for every possible value of a variable is called an identity. Review several trigonometric identities, seeing how they can be proved by choosing one side of the equation and then simplifying it until a true statement remains. Such identities are crucial for solving complicated trigonometric equations.