Understanding Trigonometric Functions of Any Angle: Lesson and Practice

Jan 27, 2026

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In this lesson, we focus on evaluating trigonometric functions for any angle using reference angles. You will learn to calculate the sine, cosine, and tangent of angles beyond the basic ones through real numbers and reference angle techniques. Enhance your skills in trigonometry by completing the exercises provided on page 318, focusing on odd-numbered problems from 11 to 21, 29 to 33, and 45 to 55, 59 to 67. Additionally, review skills from problems 97 and 102 to solidify your understanding.

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Understanding Trigonometric Functions of Any Angle: Lesson and Practice

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Problem of the Day
Section 4.4 Trigonometric Functions of Any Angle Pg 312 - 320
What you should learn • Evaluate trigonometric functions of any angle. • Use reference angles to evaluate trigonometric functions. • Evaluate trigonometric functions of real numbers.
Problem of the Day

Signs of the trigonometric functions

http://www.mathwarehouse.com/trigonometry/reference-angle/finding-reference-angle.phphttp://www.mathwarehouse.com/trigonometry/reference-angle/finding-reference-angle.php

Assignment: 4-4 4.4 Exercises page 318 Odd only: 11-21 29-33 45-55 59-67 Skills Review: 97 & 102 http://www.khanacademy.org/math/trigonometry/v/using-trig-functions