Trigonometry Solver
Trigonometric functions relate an angle to ratios of sides in a right triangle, or to coordinates on the unit circle.
Type sin(30°), cos(60°), or tan(45°). Exact unit-circle values are preferred when they exist.
Solve a problem
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Example problems
How this solver works
- Parse the function and angle.
- Use an exact table when possible.
- Otherwise convert degrees to radians and evaluate.
Worked examples
sin(30°)
- Unit circle
- 1/2
Answer: 1/2
Common mistakes
Calculator in the wrong mode
sin(30) in radian mode is not 1/2.
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Frequently asked questions
Degrees or radians?
Include the degree symbol or the word deg. Calculus problems usually want radians.