From calculus to trigonometry, mathematics causes an overwhelming feeling for a number of learners as they glance over their syllabus. If you want to ace your next math test, look no further!

In this blog, we have reviewed some of the best Trigonometry courses that are available online. These courses will ease the tension by helping you get familiar with the concepts, practice regularly, and even discover a passion while learning.

Whether you’re a math major or a high school student getting through exams, these online **trigonometry courses** can help get learners on the right path toward success.

Let’s Dive in.

## Best Online Trigonometry Courses (Free and Paid Options)

### 1. Become a Trigonometry & Precalculus Master [Udemy]

With over 34,000 learners, this course offers over 470 practice questions and thorough help for any doubts or queries on a learner’s mind. Inside each course section, the structure is designed to offer videos, notes, quizzes, and workbooks for learners to receive maximum benefit.

**Ideal for:** Homeschooling parents seeking supportive material, learners interested in math for fun, and current trigonometry or precalculus students.

**Duration:** 19 hours 24 minutes (248 lectures)

**Features: **30-day money-back guarantee, course sharing option, lifetime access, support in the Q&A section, Udemy certificate of completion

**Rating:** 4.7 out of 5 stars

**Modules:**

- Angles
- The six trig functions
- The unit circle
- Angles in circles
- Graphing trigonometric functions
- Inverse trigonometric functions
- Trigonometric identities
- Law of sines and the law of cosines
- Polar curves
- Complex numbers
- Matrices
- Partial fractions
- Conic sections and analytic geometry
- Parametric curves

### 2. Pre Calculus, Calculus, and Trigonometry [Udemy]

In a single course, precalculus, calculus, and trigonometry are covered in 9 hours of lectures and quizzes. The course emphasizes the different roles of each respective discipline in action, including various career paths. Learners learn firsthand how each mathematical science works in animation, construction, flight engineering, and satellite navigation.

**Ideal for:** Math majors, engineering majors, working professions, and those interested in learning functions, trigonometry, and Calculus.

**Duration: **9 hours 22 minutes (80 lectures)

**Features:** 30-day money-back guarantee, course sharing option, lifetime access, support in the Q&A section, Udemy certificate of completion

**Rating: **4.5 out of 5 stars

**Modules:**

- Precalculus
- Properties and types of triangles
- Pythagoras theorem
- Trigonometric functions
- Trigonometric identities
- Laws of sines and cosines
- Similar Triangles
- Calculus

### 3. Trigonometry – The Unit Circle, Angles, & Right Triangles [Udemy]

This course is one of the most thorough courses out there when it comes to trigonometry. It will take learners from what they already know to new frontiers of the subject as it dives deep into trigonometric concepts and applications. The course is aimed toward learners aiming to explore trigonometry with a passion, although it can also be followed by those hoping to pass mathematics exams.

**Ideal for: **Students with a basic knowledge of Algebra and Geometry.

**Duration: **19 hours 16 minutes (165 lectures)

**Features: **30-day money-back guarantee, course-sharing option,

**Rating: **4.7 out of 5 stars

**Modules:**

- The Unit Circle
- Right Triangle Trigonometry
- Trigonometry Functions of any Angle
- Graphing Trigonometric Functions
- Inverse Trigonometric Functions
- Applications of Trigonometric Functions
- Verifying Trigonometric identities
- Sum and Difference Formulas
- Double Angle & Half Angle Identities and Power-Reducing Formulas
- Product-To-Sum and Sum-to Product Formulas
- Solving Trigonometric Equations
- Law of Sines and Cosines
- Polar Coordinates
- Graphing Polar Equations
- Complex Numbers and De Moivre’s Theorem
- Vectors
- Dot Product

### 4. College Algebra & Trigonometry Explained [Udemy]

John Greene created this course with step-by-step video tutorials and over 4000 practice questions for learners of different mathematical knowledge and interest levels. The course is meant to be for mastery of algebra and trigonometry at the beginner and advanced levels, especially for those trying to pass exams on fundamental topics in their courses.

**Ideal for:** Students requiring an understanding of Algebra or Advanced Algebra and those enrolled in college-level algebra or precalculus courses

**Duration:** 169 hours 23 minutes (562 lectures)

**Features: **30-day money-back guarantee, full lifetime access, abundant practice material, quiz questions

**Rating:** 4.8 out of 5 stars

**Modules:**

- Reviewing Polynomials, Rational Expressions, and Radical Expressions
- Solving Linear Equations, Quadratic Equations, Radical Equations, and Inequalities
- Polynomial, inverse, Exponential, and Logarithmic Functions
- Graphs and Functions
- Systems of Equations and Matrices, Nonlinear Systems
- Sequences and Series
- Trigonometric Functions
- Acute Angles and Right Triangles
- Radian Measure and The Unit Circle

**Check out the full list of modules here.**

### 5. Advanced Precalculus: Geometry, Trigonometry, and Exponentials [Class Central]

Conducted by the University of Padova, this course is the second of 2 precalculus courses the institution offers. Plane and solid geometry, logarithms, equalities, and inequalities are covered in addition to trigonometric functions and identities for a holistic understanding of the subject. The course intends to take learners further in mathematical studies.

**Ideal for: **High school students and Undergraduates (Basic knowledge of high school mathematics desirable)

**Duration:** 4 weeks (5 hours per week)

**Features:** Auditing option, certificate, self-pacing, advanced course option

**Rating:** 4.8 out of 5 stars

**Modules:**

- Exponential and logarithmic functions
- Trigonometry
- Geometry
- From equations to spirals

### 6. Trigonometry Course [Khan Academy]

Known for its free and thorough courses, Khan Academy will help anyone revise mathematics concepts or require a simplified lesson explanation. With a conceptual understanding of the unit circle and graphs of trigonometric functions later on in the course, Khan Academy is one of the most useful resources for all learners. In addition, the Mastery Points for each section of lessons motivate learners to continue with the concepts.

**Ideal for:** High school students and all learners.

**Duration:** Self-paced

**Features:** Video-based explanations

**Rating: **4.4 out of 5 stars

**Modules:**

- Right triangles & trigonometry
- Trigonometric functions
- Non-right triangles & trigonometry
- Trigonometric equations and identities

### 7. Algebra 2 & Trigonometry: A Complete High School Curriculum [Udemy]

Matthew Gromlich’s Trigonometry course maximizes the reach of worksheets and quizzes for self-practice and dedicated learners. This course focuses on Algebra 2 as a base to transition to trigonometry as a wholesome learning experience for those preparing for competitive exams at the general population level, such as their GED.

**Ideal for:** Students familiar with Algebra 1/Geometry, Algebra 2 teachers, Adult Education students studying for high school level examinations

**Duration:** 16 hours 3 minutes (82 lectures)

**Features:** 30-day money-back guarantee, full lifetime access, written material for practice, quizzes for review

**Rating: **4.7 out of 5 stars

**Modules:**

- Matrices (Introduction, Transformations)
- Determinants and inverse matrices
- Absolute Value and inequalities
- Introduction to functions and linear functions
- Systems of equations and inequalities
- Polynomials (Dividing and Factoring)
- Radical expressions
- Quadratic and Special Functions
- Logarithms
- Polynomial Functions and Trigonometric Functions
- Unit Circle and Angle Measures
- Combinatorics

### 8. Analytic Trigonometry – Your Complete Guide [Udemy]

Analytic trigonometry is often called ‘tough,’ but the course will teach you to encourage yourself by solving problems individually and going from simple definitions and processes to concepts of understanding. Without pressure, the quizzes and worksheets help students achieve their highest in trigonometry by grasping the material and, eventually, the subject.

**Ideal for:** Students taking Precalculus, Calculus, or Trigonometry

**Duration: **9 hours 43 minutes (79 lectures)

**Features:** 30-day money-back guarantee, full lifetime access, written material for practice, quizzes for review

**Rating:** 4.3 out of 5 stars

**Modules:**

- Basics for Simplifying Trigonometric Expressions
- Simplifying Trigonometric Expressions
- Verifying Trigonometric Identities
- Solving Trigonometric Equations
- Double Angle Formulas
- Half Angle Formulas

### 9. Dave’s Short Trig Course [Clark University]

This course is based on several lessons for a basic understanding of trigonometry and offers many examples at each stage of learning the subject. As a brief resource page for different trigonometric points, this course is best suited for self-learners who require a simplified lesson version after going through their textbook or while practicing.

**Ideal for:** Students requiring revision, self-learners.

**Duration:** Self-paced

**Features: **Step-by-step learning availability, references

**Rating: **Unrated

**Modules:**

- Learning trigonometry
- Applications of trigonometry
- Definition of trigonometry
- Background of geometry
- Angle measurement and chords
- Sines, cosines, tangents, slopes
- Trigonometry of a right triangle

**Check out the full list of modules here.**

### 10. Trigonometry Online College Course [University of North Dakota]

This course offered by UND focuses on different aspects, including angles, trigonometric functions and identities, inverse trigonometry, and solving triangles. Suited for students with basic geometry knowledge, the course is fit at the high school level for those who want to know more and college students seeking more depth in trigonometry with credits awarded for their interest.

**Ideal For: **College Students

**Duration: **3-9 months

**Features: **Self-paced, proctored exams, excellent customer service, accreditation by the Higher Learning Commission, credit transfer

**Rating: **Unrated

**Modules:**

- Trigonometric Functions
- Inverse Trigonometry
- Triangles and angles
- Identities

## Conclusion

Trigonometry may appear challenging at first, but online courses can guide and inspire learners to face the subject with a keen interest in understanding more and grasping the concepts.

Choosing a Trigonometry course based on your goals and study habits is important. For example, for those with more extraordinary self-study ability, choosing **Khan Academy **or **Dave’s Short Trig Course** may be sufficient, whereas more passionate students may turn to courses with longer duration for depth, such as the Trigonometry – **The Unit Circle**, **Angles & Right Triangles course** for extensive teaching to enter the mathematics field.

May trigonometry be a happy learning experience!