Proving Trigonometric Identities | Fundamental Trigonometric Identities | Formulas | Sample Problems

Pre-Calculus
Proving Trigonometric Identities | Fundamental Trigonometric Identities | Formulas | Sample Problems
The fundamental trig identities are used to establish other relationships among trigonometric functions. To verify an identity we show that one side of the identity can be simplified so that is identical to the other side. Each side is manipulated independently of the other side of the equation.
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