Lesson: Related and Correlated Angle Identities Mathematics • First Year of Secondary School

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In this lesson, we will learn how to write trigonometric functions, like sine, cosine, and tangent, and their reciprocals in terms of cofunctions and use their properties to compare two trigonometric functions.

Lesson Plan

Students will be able to

express trigonometric functions and reciprocal trigonometric functions in terms of cofunctions
- including translations,
identify equivalent angles of the trigonometric functions , , and and the reciprocal trigonometric functions , , and ,
recognize the equivalence of two trigonometric functions using the known properties of the function and equivalence relationships.