The Mathematics

Some important correlations

Some important correlations Transforming product-to-sum. Universal substitution. Quadruple-angle formulas. The last three formulas are called a universal substitution; they are used at solving some of trigonometric equations and integrating of trigonometric functions. Back The math online

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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