# Trigonometry 10 Best + Free online certification Courses, classes

Here's a list of Top 10 Best and free Trigonometry online Certification Courses & Classes from top online education providers (Udemy, Alison, Khan Academy). Become a Trigonometry & Precalculus Master.

These courses will help you to master the concepts of Trigonometry from beginner to advanced, with step-by-step video tutorials and test your knowledge with tough Practice Test Questions.

Click here for All Mathematics Courses (Algebra, Geometry, Graph Theory, Master Math, Trigonometry, and more)

## Best and free Trigonometry online Certification Courses & Classes, tutorial

### 1. Become a Trigonometry & Precalculus Master (Udemy)

★ 4.8 (2,178+ ratings) | 24,852+ students | 15 hours on-demand video | 214 downloadable resources | Full lifetime access | 30-Day Money-Back Guarantee | Certificate of completion.

Learn everything from Trigonometry and Precalculus, then test your knowledge with 470+ practice questions.

In this Trigonometry & Precalculus Master course you'll learn:

Angles and their measure, including degrees, DMS and radians

Six circular functions, including sine, cosine, tangent, cosecant, secant, and cotangent

The unit circle, including finding sine and cosine, and how to complete a triangle

Angles in circles, including oriented arcs, circular sectors, and linear and angular velocity.

This 302-lesson course includes video and text explanations of everything from Trigonometry and Precalculus, and it includes 89 quizzes (with solutions!) and an additional 10 workbooks with extra practice problems, to help you test your understanding along the way.

With every online college trigonometry class, you will get videos, notes, and quizzes. In the videos, you can see your tutor take every problem from the beginning. The course head will explain the problem setup and explain why this problem is set the way it is.

Course Link: course-trig-by-krista-king

### 2. Trigonometry Explained (Udemy)

★ 5.0 (2+ ratings) | 15+ students | 16.5 hours on-demand video | Full lifetime access | Certificate of completion | 30-Day Money-Back Guarantee.

In this course, you will master the concepts of Trigonometry from beginner to advanced, with step-by-step video tutorials and test your knowledge with tough Practice Test Questions.

In this Trigonometry Explained course you'll learn::

Trigonometry Basics, Review of Angles, Acute Angles, Obtuse Angles, Right Angles, Straight Angles, Finding the Complement of an angle

Degrees, Minutes, and Seconds, Converting Between Decimal Degrees and Degrees, Minutes, and Seconds

Solving for Missing Angles in Similar Triangles.

Link: trigonometry-explained

### 3. Trigonometry - The Unit Circle, Angles, & Right Triangles (Udemy)

★ 4.9 (423+ ratings) | 1,678+ students | 19.5 hours on-demand video | Full lifetime access | 30-Day Money-Back Guarantee | Certificate of completion.

This online trigonometry course is for high school and college students who are taking trig and may need help with their homework or simply to pass a test.

Analytical Trig, Verifying Trigonometric Identities, Double Angle Formulas, Inverse Trigonometric Functions & More.

Link: trigonometry-the-unit-circle-angles-right-triangles

### 4. Trigonometry Mastered (Udemy)

★ 4.8 (27+ ratings) | 361+ students | 10.5 hours on-demand video | Full lifetime access | Certificate of completion | 30-Day Money-Back Guarantee.

Become an Expert on Right Angle, Unite Circle, Analytic Trigonometry and Polar Coordinates.

In this Trigonometry Mastered course you'll learn:

Fully understand the Unite Circle, Learn how to find Terminal Points, Reference Numbers and Reference Angles.

Learn what are Trigonometric Functions, Master graphing Trigonometric Functions.

Be able to determine Domain and Range of Trig Functions, Be able to use the Law of Sins and Cosines.

Master the different Trigonometric Formulas.

Link: trigonometry-mastered

### 5. Trigonometry 1: The Complete Foundational Masterguide (Udemy)

★ 5.0 (10+ ratings) | 595+ students | 1hr 28min of on-demand video.

In this Trigonometry course you'll learn:

Defining Trigonometry, Angle, Right Angled Triangle

Diving deep into Right Angle Triangle, conceptualizing Base, Perpendicular, Hypotenuse

Real World Scenarios involving identification of Right Triangle and applying associated properties to solve problems

Defining Trigonometric Ratios of angle A and C in a right triangle ABC (B = 90).

Link: trigonometry-i

### 6. Introduction to Trigonometry for Engineering Free Course (Alison)

★ 104+ Students | 5-6 hours duration.

Learn about the variety of areas engineers use trigonometry to develop solutions in this free online course from Alison.

This free online course will also teach you how to solve basic trigonometric identities, first and second-degree trigonometric equations, as well as operations on two angles using sine, cosine and tangent.

Online class Link: introduction-to-trigonometry-for-engineering

### 7. Triangles & Trigonometry

(Khan Academy)You will learn trigonometry with right triangles and general triangles. Later in the course, you will study the unit circle and the graphs of different trigonometric functions. You will also learn the usage of equations that can be used to solve mathematical problems related to triangles.

Learn radians and trigonometric identities. Study trigonometric ratios and similarity functions.

Link: math-trigonometry

### 8. Trigonometry: Your Complete Guide (Udemy)

★ 4.7 (93+ ratings) | 450+ students | 8 hours on-demand video | Full lifetime access | Certificate of completion | 30-Day Money-Back Guarantee.

Master everything from sketching angles to graphing trig functions and assess your mastery with quiz questions too.

Over 200 worked out examples explained step by step. Over 30 Worksheets to practice what you are learning.

Learn about trigonometric function, Evaluate the six trigonometric functions using the unit circle and triangle, Graph all six trigonometric functions with transformations.

Evaluate the inverse trigonometric functions and composition of functions, Sketch and convert angles between radians and degrees.

Link: master-graphing-trigonometric-functions

### 9. Pre Calculus, Calculus and Trigonometry (Udemy)

★ 4.7 (369+ ratings) | 3,326+ students | 9.5 hours on-demand video | Full lifetime access | Certificate of completion | 30-Day Money-Back Guarantee.

In this Pre Calculus, Calculus and Trigonometry course you will learn Pre Calculus, Calculus and Trigonometry. One Single Course to teach Pre Calculus, Calculus and Trigonometry with over 9 Hours of Lectures, Quizzes and Exercises.

Define the domain and range of a function, find the domain and range of a function (pre calculus). define the average rate of change of a function, find the average rate of change of a function and solve problems based on them (pre calculus).

By the end of this course you will be able to define functions, recognize them and cite examples thereof (pre calculus).

Link: become-a-calculus-master-a-complete-calculus-1-course

#### 10. Master yourself in Trigonometry applications (Udemy)

★ 5.0 (4+ ratings) | 953+ students | 1.5 hours on-demand video | Full lifetime access | 30-Day Money-Back Guarantee | Certificate of completion.

Learn to estimate real life measurement challenges with simple techniques of trigonometry.

Gain Confidence and be Mastered in Trigonometry applications.

Increase their speed of resolution of a given problem.

Able to get quick solution for any complex real life scenarios using trigonometry principles.

Link: master-yourself-in-trigonometry-applications

### What Is Trigonometry?

Trigonometry is a branch of mathematics that studies relationships between the sides and angles of triangles. Trigonometry is found all throughout geometry, as every straight-sided shape may be broken into as a collection of triangles. Further still, trigonometry has astoundingly intricate relationships to other branches of mathematics, in particular complex numbers, infinite series, logarithms and calculus.

Trigonometry helps you understand any topic that involves distances, angles, or waves.