Lesson: Trigonometric Functions’ Values with Reference Angles | Nagwa Lesson: Trigonometric Functions’ Values with Reference Angles | Nagwa

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Lesson: Trigonometric Functions’ Values with Reference Angles Mathematics • First Year of Secondary School

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In this lesson, we will learn how to find reference angles and how to use them to find the values of trigonometric functions.

Lesson Plan

Students will be able to

  • identify the principal angle for a given angle,
  • use principal angles to find the value of trigonometric functions where the angles are outside of the range between 0∘ and 360∘ or 0 radians and 2𝜋 radians.

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17:49

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