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Trigonometric equations. Main methods for solving

Trigonometric equations. Simplest trigonometric equations. Methods of solving:  algebraic method,  factoring, reducing to a homogeneous equation, transition to a half-angle, introducing an auxiliary angle, transforming a product to a sum, universal substitution. Trigonometric equations. An equation, containing an unknown under the trigonometric function sign is called trigonometric. Simplest trigonometric equations. Methods for solving trigonometric equations. …

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