# Ch 20: Using Trigonometric Functions: Tutoring Solution

The Using Trigonometric Functions chapter of this High School Precalculus Tutoring Solution is a flexible and affordable path to learning about the use of trig functions. These simple and fun video lessons are each about five minutes long and they teach all of the operations involving trigonometric functions required in a typical high school precalculus course.

## How it works:

• Begin your assignment or other precalculus work.
• Identify the trigonometric functions concepts that you're stuck on.
• Find fun videos on the topics you need to understand.
• Press play, watch and learn!
• Complete the quizzes to test your understanding.
• As needed, submit a question to one of our instructors for personalized support.

## Who's it for?

This chapter of our high school precalculus tutoring solution will benefit any student who is trying to learn how to use trig functions and earn better grades. This resource can help students including those who:

• Struggle with understanding sine, cosine, cotangent, secant, cosecant, the double angle formula or any other trigonometric functions topic
• Have limited time for studying
• Want a cost effective way to supplement their math learning
• Prefer learning math visually
• Find themselves failing or close to failing their trigonometric functions unit
• Want to get ahead in precalculus

## Why it works:

• Engaging Tutors: We make learning how to use trig functions simple and fun.
• Cost Efficient: For less than 20% of the cost of a private tutor, you'll have unlimited access 24/7.
• Consistent High Quality: Unlike a live precalculus tutor, these video lessons are thoroughly reviewed.
• Convenient: Imagine a tutor as portable as your laptop, tablet or smartphone. Learn how to use trig functions on the go!
• Learn at Your Pace: You can pause and rewatch lessons as often as you'd like, until you master the material.

## Learning Objectives

• Become familiar with the basic trigonometric functions of sine, cosine and tangent.
• Understand the trigonometric functions of cotangent, secant and cosecant.
• Memorize the first quadrant of the unit circle.
• Use the unit circle to relate right triangles to sine and cosine.
• Solve problems involving circular trigonometric functions.
• Describe the types and properties of special right triangles.
• Determine the trigonometric function values of special angles.
• Become familiar with the law of sines and law of cosines.
• Discuss the double angle formula.
• Convert between radians and degrees.

12 Lessons in Chapter 20: Using Trigonometric Functions: Tutoring Solution
Test your knowledge with a 30-question chapter practice test
Chapter Practice Exam
Test your knowledge of this chapter with a 30 question practice chapter exam.
Not Taken
Practice Final Exam
Test your knowledge of the entire course with a 50 question practice final exam.
Not Taken

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