# 5 Best Trigonometry Courses For Beginners in 2023

Trigonometry is one of the important branches of the history of mathematics, which studies the relationship between the sides and angles of a right triangle. Trigonometry deals with the ratio of the sides of a triangle (right triangle) with its angles.

The word trigonometry comes from the Greek words trigonon (triangle) and metron (measurement). Trigonometry is also useful for regular triangles, not just rectangular ones. Trigonometry is present in all geometric shapes since each rectilinear shape can be broken down into a set of triangles.

Keeping this in mind, here at Coursesity, we have curated some of the Best Online Trigonometry Courses with certification. Hope that you will find the best course for you to learn how to not only gain a better understanding of trigonometry but also the confidence to solve more problems on your own.

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## 1. Become a Trigonometry & Precalculus Master

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

The course includes:

• Angles
• The six trig functions
• The unit circle
• Angles in circles
• Graphing trig functions
• Inverse trig functions
• Trig identities
• The law of sines and the law of cosines
• Polar coordinates
• Graphing polar curves
• Parametric curves
• Analytic geometry
• Complex numbers
• Matrices

In this Trignometry course, you will learn about Angles and their measure, including degrees, DMS, and radians. You will also learn Angles in circles, including oriented arcs, circular sectors, and linear and angular velocity.

Next, the course will teach you about the six circular functions, which are sine, cosine, tangent, cosecant, secant, and tangent. You will learn the laws of sine and cosine, including Heron's formula.

Plus, you will learn how you can Graph the trig functions using period and amplitude, horizontal and vertical shifts, and other transformations. You will also Trig identities like even-odd, sum-difference, double-angle, half-angle, product-to-sum, and sum-to-product.

• Course rating: 4.8 out of 5.0 (3,347 Ratings total)
• Duration: 19h 24m
• Certificate: Certificate on completion

## 2. Trigonometry - The Unit Circle, Angles, & Right Triangles

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

The course includes:

• The Unit Circle
• Right Triangle Trigonometry
• Trigonometric 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

With this Trigonometry course, you will learn Angle drawing in a standard position and converting Angles from Degrees to Radians and Radians to Degrees. You will understand Circular Arc Length, Linear Speed, and Angular Speed.

Next, you will understand the six Trigonometric functions and the Unit Circle and how to find out the exact values of Trigonometric functions - Sine, Cosine, and Tangent. By the end of this course, you will develop a solid understanding of Trigonometry.

• Course rating: 4.8 out of 5.0 (470 Ratings total)
• Duration: 19h 30m
• Certificate: Certificate on purchase

## 3. Advanced Precalculus: Geometry, Trigonometry, and Exponentials

In this course you will learn :

• Solve problems using properties of the basic transcendental functions: exponential, logarithmic, and trigonometric.
• Calculate expressions involving transcendental functions.
• Solve equalities and inequalities in terms of transcendental functions.
• Calculate areas and volumes of basic geometric plane figures and spatial solids.
• Apply elements of mathematical reasoning and proofs.
• Compare exponentials and logarithms.
• Model basic compound interest.

With this course, you will get to grips with more challenging precalculus topics: plane and solid geometry; logarithms and exponentials; equalities and inequalities; and trigonometric functions and identities.

By the end of this course, you will have gained the skills to support further mathematical studies.

• Course rating: 4.8 out of 5.0 (11,468 total enrollments)
• Duration: 20h
• Certificate: Certificate on completion

## 4. Trigonometry: Your Complete Guide

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

The course includes:

• Sketching angles in standard position
• What are trigonometric functions?
• Evaluating trig functions without a calculator
• How to graph trigonometric functions?
• How to find the period of a graph?
• Sine equations

Here, you will understand the basic concepts of Trigonometry. You will pay special attention to things like Trigonometric functions, sketching angles in standard position, and graphing the Trigonometric functions. In short, you will learn Trigonometry as a beginner.

By the end of this course, you will not only gain a better understanding of trigonometry but you will gain the confidence to solve more problems on your own.

• Course rating: 4.5 out of 5.0 ( 107 Ratings total)
• Duration: 8h
• Certificate: Certificate on purchase

## 5. Precalculus & Trigonometry Explained

Master Pre-calculus & Trigonometry with our Step by Step Video Tutorials. Over 1500 Practice Questions!

The course includes

• Functions and Their Graphs
• Polynomial Functions
• Exponential / Logarithmic Functions and Their Graphs
• Systems of Equations
• Matrices and Determinants
• Analytic Geometry & NonLinear Systems
• Sequences and Series
• Further Topics in Algebra (Binomial Theorem, Counting Theory, Probability)
• Trigonometric Functions
• Acute Angles and Right Triangles
• Radian Measure & The Unit Circle
• Graphing Trigonometric Functions
• Trigonometric Identities
• Trigonometric Equations and Inverse Trigonometric Functions
• Law of Sines and Cosines

This Trigonometry course will teach you their Functions, Graphs, the Rectangular Coordinate Plane, and the Midpoint of a Line Segment. You will learn about the Pythagorean Formula and Complex Plane i.e. Distance and Midpoint Formulas.

Next, you will learn about the absolute value of a complex number. You will also learn the Fundamental Theorem of Algebra and prove that two functions are inverses.

Finally, the course will show you how to find and rewrite missing Trigonometric expressions using the Fundamental Identities.

• Course rating: 4.7 out of 5.0 ( 53 Ratings total)
• Duration: 48h
• Certificate: Certificate on purchase

Hey! We hope you have found these Online Trigonometry Courses with the certification list helpful and intriguing. Since you've made it this far then certainly you are willing to learn more and here at Coursesity, it is our duty to enlighten people with knowledge on topics they are willing to learn.

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