Lesson Plan: Solving Trigonometric Equations Using Trigonometric Identities | Nagwa Lesson Plan: Solving Trigonometric Equations Using Trigonometric Identities | Nagwa

# Lesson Plan: Solving Trigonometric Equations Using Trigonometric Identities

This lesson plan includes the objectives, prerequisites, and exclusions of the lesson teaching students how to use Pythagorean trigonometric identities to solve trigonometric equations.

#### Objectives

Students will be able to

• solve a trigonometric equation over a given interval by applying one or more of the following trigonometric identities:
• reciprocal identities,
• periodic identities,
• Pythagorean identities,
• angle sum and difference identities,
• odd and even identities,
• cofunction identities,
• solve real-world problems involving solving a trigonometric equation over a given interval by applying one or more trigonometric identities.

#### Prerequisites

Students should already be familiar with

• the following trigonometric identities:
• reciprocal identities,
• periodic identities,
• Pythagorean identities,
• angle sum and difference identities,
• odd and even identities,
• cofunction identities,
• solving trigonometric equations.

#### Exclusions

Students will not cover

• solving trigonometric equations with half-angle or double-angle identities,
• solving a simple trigonometric or reciprocal trigonometric identity,
• verifying trigonometric identities.