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

Overview

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.

Objectives

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

Terminology

Define: trigonometric equation, linear trig equation, quadratic trig equation

Supplemental Resources (optional)

Mini-Lessons:
Solve Trigonometric Equations I
Solve Trigonometric Equations II
Solve Trigonometric Equations III
Examples:
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