
Also TryLesson Plans
 Math Lessons (Awesome Library)
Provides lessons, worksheets, and activities. 600
Lists
 Problems and Solutions (eMathematics.net)
Provides problems, explanations, and solutions. 1009
 Trigonometry  Basic Course (Clark University  Joyce)
Provides explanations, diagrams, problems, and answers for basic trigonometry concepts and problems. 400
 Trigonometry  Solving Right Triangles (Clark University  Joyce)
Provides an explanation and problems for solving right triangles. Includes answers. 400
 Trigonometry  Solving a Right Triangle (WebMath)
Provides a lesson and the missing information when you fill in portions of the problem. 204
Multimedia
 Trigonometry Resources (Fife and Husch)
Provides nearly three dozen sources on trigonometry. 500
 Trigonometry Resources (Math Forum)
Papers
 Trigonometry (Schooltube.com)
Teachers provide tutorials on videos. 0912
 Trigonometry (Zobel)
Provides definitions and graphs of trigonomic functions. Includes an animation of sin(x). 400
 Trigonometry  Formulas for Triangles (Levy)
Provides formulas and diagrams for triangles. 1009
 Trigonometry  More Advanced (S.O.S. Mathematics)
Provides problems and solutions. 601
 Trigonometry Basics (Kelly)
Provides an introduction and formulas for solving basic trigonometry problems. Includes Definitions and basics, Trigonometric circle and angles, Trigonometric numbers of a real number t, Basic formulas, Related values, Supplementary values, Complementary values, Opposite values, Anti supplementary values, The rightangled triangle, Area of a triangle, Sine rule, Homogeneous expression in a, b and c, Cosine rule, Trigonometric functions, The sine function, The cosine function, The tangent function, The cotangent function, Inverse Trigonometric Functions, The arcsin function, The arccos function, The arctan function, The arccot function, Sum formulas, cos(u  v), cos(u + v), sin(u  v), sin(u + v), tan(u + v), tan(u  v), sin(2u), cos(2u), tan(2u), Carnot formulas, tformulas, Special values, pi/3, pi/4, pi/6, Trigonometric equations, Base equations, cos(u) = cos(v), sin(u) = sin(v), tan(u) = tan(v), cot(u) = cot(v), Reducing to base equations, Using an additional unknown, Using factorization, The equation a.sin(u)+b.cos(u) = c, Homogeneous equations, and Calculations with inverse trigonometric functions. 601
 Trigonometry Basics  Problems and Solutions (WebMath)
Provides solutions and answers to basic problems in trigonometry, including Right Angle Relationships, Graphing Trig Functions, Simplifying Trig Functions, and Polar Graphs. 204
 Trigonometry Explained (Columbia Encyclopedia)
Explains the basics of trigonometry for advanced students. 500
 Trigonometry Functions  History (University of St. Andrews, Scotland)
Provides a history of trigonometry functions and the mathematicians behind their discovery. 400
 Trigonometry Questions and Answers (Math Forum  Ask Dr. Math)
Includes key questions asked by high school students about trigonometry problems.

