Trigonometry For Dummies

Learn to: Solve tricky trig equations Graph functions and figure out formulas Use trigonometry to solve practical problems Your guide to getting an angle on sines, cosines, and tangents Confused by cosines? Perplexed by polynomials? Dont worry! This friendly guide takes the torture out of trigonometry by explaining everything in plain English, offering lots of easy–to–grasp examples, and adding a dash of humor and fun. Youll see the ways trig applies to everyday life, and how its an important tool for a variety of careers. Start with basics get up and running with an overview of trig functions, radians, and more Learn tricky trig functions take things to the next level with SOH–CAH–TOA and circular functions Identify identities dig into reciprocal, ratio, opposite–angle, and Pythagorean identities Make trig work get practical with trig, find out how to use your calculator for complex solutions, and solve trig equations Graph functions figure out the basics of graphing sine, cosine, tangent, cotangent, and more Open the book and find: Definitions of trigonometry functions How to get down with Pythagoras and his theorem Ways to use Cartesian coordinates The lowdown on the sine, cosine, and tangent functions How to go ′round and ′round with circular functions The scoop on inverse trigonometry Details on graphing trig functions Ten basic identities and ten not–so–basic identities

Mary Jane Sterling is the author of Algebra I For Dummies and many other For Dummies titles. She has been teaching mathematics at Bradley University in Peoria, Illinois, for more than 30 years and has loved working with future business executives, physical therapists, teachers, and many others.