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Free trigonometry calculator - calculate trignometric equations, prove identities and evaluate functions step-by-step
Enter all known variables (sides a, b and c; angles A and B) into the text boxes. To enter a value, click inside one of the text boxes. Click on the "Calculate" button to solve for all unknown variables.
This trigonometry calculator will help you in two popular cases when trigonometry is needed. If you want to find the values of sine, cosine, tangent, and their reciprocal functions, use the first part of the calculator.
Calculate any trigonometric function by inputting the angle or the sides and angles of a right triangle. Learn about trig identities, unit circle, and trig formulas with examples and FAQs.
Trigonometry is a branch of mathematics concerned with relationships between angles and side lengths of triangles. In particular, the trigonometric functions relate the angles of a right triangle with ratios of its side lengths.
Use this online tool to find the values of the trig functions for any angle and unit of measurement. Learn what trigonometry is, how to use it, and what it is used for in different fields.
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