Trigonometric Equations

Trigonometric equations involve trigonometric functions of unknown angles. Solving them requires finding all angles that satisfy the equation.

Basic Trigonometric Equations

Example: Simple Equation

General Solutions

Example: Using General Solution

Solving Quadratic Trigonometric Equations

Example: Quadratic in

Equations Involving Multiple Angles

Example: Double Angle

Solving Equations with Identities

Example: Using Identity

Practice Problems

1. Solve for .
2. Find the general solution of .
3. Solve for .
4. Solve for .