# Trigonometric functions, identities and equations course

Learn about double-angle identities which derived from the sum formulas of the fundamental trigonometric functions: sine, cosine, and tangent.

Duration 1Hr
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## Course Details

In mathematics, the trigonometric functions (also called circular functions, angle functions or goniometric functions[1][2]) are real functions that relate an angle of a right-angled triangle to ratios of two side lengths. They are widely used in all sciences that are related to geometry, such as navigation, solid mechanics, celestial mechanics, geodesy, and many others. They are among the simplest periodic functions, and as such are also widely used for studying periodic phenomena through Fourier analysis.

## What you'll learn

• Learn about the simplest periodic functions
• Learn the Pythagorean formula for sines and cosines
• Ods of the functions involved are different. What will allow us to solve this equation relatively easily is a trigonometric identity
• The main trigonometric identities between trigonometric functions are proved, using mainly the geometry of the right triangle

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### Tutor Details

Maths Tuition Singapore

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