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❶Watch this video lesson to learn how you can use your basic definitions and identities to help you prove a trigonometric equation identity. Homework Help Working with Complex Numbers:

## A Guide to Proving Trig Identities

Uses of basic trig identities Alternate forms of trig identities Pythagorean identities Reciprocal identities Double-angle identities Power-reducing identities Half-angle identities Product-to-sum identities Sum-to-product identities Sum and difference identities. There are specific trig functions that have very special and very simple relationships with each other. Learn the main one and how you can use it to understand the others.

After watching this video lesson, you will understand what a trigonometric identity is. You will also know the different kinds of identities you will come across. After watching this video lesson, you will know some of the alternate forms of the basic trigonometric identities. You will also learn how to use these alternate forms.

After watching this video lesson, you will be able to spot the Pythagorean identities when you see them. You will also learn how these identities can help you solve more complicated trig problems. Trigonometry is full of identities, a set of which are called the reciprocal identities. Watch this video lesson to learn what they are and how you can use them to help you solve problems. Watch this video lesson to learn how you can use the double-angle identities in trigonometry to help you prove and solve more complicated trigonometry problems.

After watching this video lesson, you will be able to use half-angle identities to help you simplify your trig problems and also to help you prove other trig statements. After watching this video lesson, you will know what the four product-to-sum identities are. You will also know how they are used.

You will also see two examples of problems. In this video lesson, you will learn about the four sum-to-product identities for the sine and cosine functions. Learn how to go from the sum or subtraction of two functions to the product of two functions along with the two angles. Watch this video lesson to learn how you can use your basic definitions and identities to help you prove a trigonometric equation identity. Learn what is involved and what to do for a successful answer. Watch this video lesson to learn the six sum and difference identities for the trig functions of sine, cosine, and tangent.

Also, learn how you can use them to your advantage when solving tough trig problems. After watching this video lesson, you will learn how some of our trigonometric identities are derived. You will also see how some identities naturally lead to the others. Did you know… We have over college courses that prepare you to earn credit by exam that is accepted by over 1, colleges and universities. You can test out of the first two years of college and save thousands off your degree.

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By creating an account, you agree to Study. Explore over 4, video courses. Find a degree that fits your goals. Try it risk-free for 30 days. About This Chapter The Trigonometric Identities chapter of this High School Precalculus Homework Help course helps students complete their trigonometric identities homework and earn better grades.

This homework help resource uses simple and fun videos that are about five minutes long. Test your knowledge with a question chapter practice test. View all practice tests in this course. List of the Basic Trig Identities There are specific trig functions that have very special and very simple relationships with each other. Alternate Forms of Trigonometric Identities After watching this video lesson, you will know some of the alternate forms of the basic trigonometric identities.

Verifying a Trigonometric Equation Identity Watch this video lesson to learn how you can use your basic definitions and identities to help you prove a trigonometric equation identity. Test your knowledge of this chapter with a 30 question practice chapter exam. Other Practice Exams in this course. Test your knowledge of the entire course with a 50 question practice final exam. Earning College Credit Did you know… We have over college courses that prepare you to earn credit by exam that is accepted by over 1, colleges and universities.

To learn more, visit our Earning Credit Page Transferring credit to the school of your choice Not sure what college you want to attend yet? Browse Articles By Category Browse an area of study or degree level. Homework Help Working With Inequalities: Homework Help Absolute Value Equations: Homework Help Working with Complex Numbers: Homework Help Systems of Linear Equations: Homework Help Mathematical Modeling: Homework Help Introduction to Quadratics: Homework Help Working with Quadratic Functions: Homework Help Geometry Basics for Precalculus: Homework Help Functions - Basics for Precalculus: Homework Help Understanding Function Operations: In order to use them, you need to put the text on a new line and everything on that line will be in that color.

Help getting started on verifying a Trig Identity self. I have tried changing the left side to sum and difference formulas but that seems to be a dead end. A trig identity is one that relates trig ratios or some combination of trig ratios to other ones. Where would you use them? Use of this site constitutes acceptance of our User Agreement and Privacy Policy. Log in or sign up in seconds. Submit a new text post. Rather, assign them with the "Solved! Welcome to Reddit, the front page of the internet.

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Proving identities is a big part of any trigonometry class (or method of study). Here, you will find a basic method that will work on every problem, an example of how to use it, and additional tips and tricks to save you some time.
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