Course: Trigonometry
Topic: Trigonometric Equations
Subtopic: Solving Trig Equations


Trigonometric equations are equations that contain trigonometric expressions. Because they are equations they can be solved for the variable which is usually the angle. These equations usually have multiple answers and you can check your answers by plugging back into the original equation or by graphing. In this lesson we start with some basic equations such as those that contain only a single trigonometric function.


By the end of this topic you should know and be prepared to be tested on:


Terms you should be able to define: trigonometric equation, linear trig equation, quadratic trig equation

Mini-Lectures and Examples

STUDY: Solving Trigonometric Equations & Equations Involving Identities

Supplemental Resources (optional)

Solve Trigonometric Equations I
Solve Trigonometric Equations II
Solve Trigonometric Equations III
Ex:  Solve a Trig Equation with an Inverse Trig Function
Ex: Solve a Trig Equation for a Variable
Example 1:  Solving a Trig Equation Using a Calculator
Example 2:  Solving a Trig Equation Using a Calculator
Example 1:  Solving a Trigonometric Equation
Example 2:  Solving a Trigonometric Equation
Example 3:  Solving a Trigonometric Equation

rev. 2020-10-31