Lesson Plan: Domain and Range of Trigonometric Functions | Nagwa Lesson Plan: Domain and Range of Trigonometric Functions | Nagwa

# Lesson Plan: Domain and Range of Trigonometric Functions Mathematics • First Year of Secondary School

This lesson plan includes the objectives, prerequisites, and exclusions of the lesson teaching students how to determine the domain and range of a trigonometric function.

#### Objectives

Students will be able to

• find the domain and range of trigonometric functions involving , , and given algebraically,
• find the domain and range of trigonometric functions involving , , and given graphically,
• identify values of or that lie outside the domain or range of a given trigonometric function involving , , or .

#### Prerequisites

Students should already be familiar with

• the concept of domain and range,
• graphs of the functions , , and ,
• periodicity of trigonometric functions.

#### Exclusions

Students will not cover

• reciprocal trigonometric functions,
• functions involving products or quotients of trigonometric functions ( is allowed).

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