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What is Trigonometric Identities Explained about?

This document discusses trigonometric identities. It begins by defining a trigonometric identity as an equation involving trigonometric ratios of an angle that is satisfied for all values of the angle for which the ratios are defined. Several fundamental identities are then proven, including: (1) sin2θ + cos2θ = 1, which is proven using cases for θ = 0°, 90°, and an acute angle. (2) sec2θ = 1 + tan2θ, which is proven using the Pythagorean theorem in a right triangle. (3) cosec2θ = 1 + cot2θ, which is

Author

The VRAJ GAMES

Language

EN