# Ch 25: Working with Trigonometric Identities: Tutoring Solution

The Working with Trigonometric identities chapter of this High School Trigonometry Tutoring Solution is a flexible and affordable path to learning about trigonometric identities. These simple and fun video lessons are each about five minutes long, and they teach students how to work with the trigonometric identities covered in a typical high school trigonometry course.

## How it works:

• Begin your assignment or other high school trigonometry work.
• Identify the trigonometric identities 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 Trigonometry Tutoring Solution will benefit any student who is trying to learn about trigonometric identities and earn better grades. This resource can help students, including those who:

• Struggle with understanding Pythagorean identities, reciprocal identities, double-angle identities, half-angle identities, product-to-sum identities or any other trigonometric identities 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 identities unit
• Want to get ahead in high school trigonometry

## Why it works:

• Engaging Tutors: We make learning trigonometric identities 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 trigonometry tutor, these video lessons are thoroughly reviewed.
• Convenient: Imagine a tutor as portable as your laptop, tablet or smartphone. Learn trigonometric identities on the go!
• Learn at Your Pace: You can pause and re-watch lessons as often as you'd like, until you master the material.

## Learning objectives

• Study different kinds of trigonometric identities.
• Detail the basic trigonometric identities.
• Express trigonometric definitions in alternate ways.
• Solve mathematical problems by applying the Pythagorean, reciprocal and double-angle identities.
• Learn to use half-angle, sum-to-product and product-to-sum identities.
• Explain how fundamental identities can be used to verify that a trigonometric equation is an identity.
• Apply difference and sum identities.
• Learn to prove a trigonometric identity.

10 Lessons in Chapter 25: Working with Trigonometric Identities: 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

### Earning College Credit

Did you know… We have over 200 college courses that prepare you to earn credit by exam that is accepted by over 1,500 colleges and universities. You can test out of the first two years of college and save thousands off your degree. Anyone can earn credit-by-exam regardless of age or education level.