Curated Video
Distance to the Sun and Moon
What are the trigonometric functions and how did the sine function allow Indian astronomers to prove that the Sun was 400 times farther from Earth than the Moon? Maths - Shape A Twig Math Film. Reinforce and extend the learning required...
Brian McLogan
Quick Trigonometric Functions Review
In this video we are going to explore trigonometric functions and how we can use them to find the missing sides of right triangles. ⭐️ Quick Special Right Triangles Review - • Quick Special Right Triangles Review ⭐️ Quick Inverse...
Brian McLogan
Evaluating the difference of two angles for the cosine function
👉 Learn how to evaluate the secant of the sum or difference of two angles using the sum/difference formulas. To do this, we first use the Pythagoras theorem to obtain all the sides of the right triangle in the unit circle. Recall that...
Brian McLogan
Given a point find the six trigonometric functions
👉 Learn all about evaluating trigonometric functions with triangles. In this playlist, we will learn how to evaluate, sine, cosine, tangent, cotangent, secant, and cosecant when given the sides of a triangle. If we have missing sides we...
Brian McLogan
Find the measure of an angle using three side lengths of a triangles - math help
I show how to solve math problems online during live instruction in class. This is my way of providing free tutoring for the students in my class and for students anywhere in the world. Every video is a short clip that shows exaclty how...
Brian McLogan
An introduction into the law of sines
👉 Learn how to solve for the length of the sides and the measures of the angles of a triangle using the law of sines. The law of sines is used in determining the length of the opposite side to a known angle measure or the measure of the...
Brian McLogan
Evaluating the six trigonometric functions given a right triangle
👉 Learn how to evaluate the six trigonometric functions given a right triangle. A right triangle is a triangle with 90 degrees as one of its angles. A right triangle is made up of two legs, which formed the sides of the 90 degrees angle...
Brian McLogan
Given the number of sides of a regular polygon find the measure of each interior angle
👉 Learn how to determine the measure of the interior angles of a regular polygon. A polygon is a plane shape bounded by a finite chain of straight lines. A regular polygon is a polygon whose sides are congruent (equal). The interior...
Physics Girl
Trig Review for Physics - Common Math Tools - Physics 101, AP Physics 1 Review with Physics Girl
Exercises in this video: Problem 1: 1. You are running north-east at a speed of 4 m/s. What component of your velocity is north? How about east? Problem 2: You are kite-surfing and your kite is pulling you upwards at an angle of 60º with...
Brian McLogan
Sketch a triangle given a trig angle then determine remaining trig functions of angle
👉 Learn how to evaluate the six trigonometric functions given the value of one of the trigonometric functions. When given the value of one of the trigonometric functions of an angle, we can evaluate the values of the other trigonometric...
ATHS Engineering
Introduction to Trigonometry for Calculating Forces in Trusses
This video teaches basic trigonometry concepts needed to calculate forces in trusses, using the mnemonic "SOHCAHTOA" to remember the sine, cosine, and tangent equations. The video provides examples of how to use these equations to...
Brian McLogan
Evaluating the composition of Functions using Right Triangles
👉 Learn how to evaluate an expression with the composition of a function and a function inverse. Just like every other mathematical operation, when given a composition of a trigonometric function and an inverse trigonometric function,...
ATHS Engineering
POE Truss Sample Problem
Today, we are going to walk through an example problem. Remember, for each truss we follow the same steps: 1. Calculate the missing angles (if necessary) 2. Calculate static determinance (2J=M+R) 3. Calculate reaction forces 4. Calculate...
Brian McLogan
Evaluating the composition of Functions using Right Triangles
👉 Learn how to evaluate an expression with the composition of a function and a function inverse. Just like every other mathematical operation, when given a composition of a trigonometric function and an inverse trigonometric function,...
Brian McLogan
Using tangent to find the missing length of a triangle
👉 Learn how to find a missing side length of a right triangle. A right triangle is a triangle that has 90 degrees as one of its angles. The trigonometric identities of right triangles give us the relationship between the angles of a...
Brian McLogan
How to convert a rectangular coordinate to polar
In this video series you will learn multiple math operations. I teach in front of a live classroom showing my students how to solve math problems step by step. My math tutorials should be used to review previous lessons, complete your...
Brian McLogan
Learn to find the missing angles for a triangle using inverse trig functions
👉 Learn how to find a missing angle of a right triangle. A right triangle is a triangle that has 90 degrees as one of its angles. The trigonometric identities of right triangles gives us the relationship between the angles of a right...
KnowMo
Introduction to the Cosine Function and Trigonometry Ratios
The video explains the basics of trigonometry, the three important ratios (sine, cosine, and tangent) used to calculate side lengths and angles in triangles, and the labeling of right angle triangles. It then focuses on the cosine...
Curated Video
Trigonometric Ratios and the Unit Circle
This video explains the definitions of the trigonometric ratios, specifically using the unit circle to determine their values beyond 90 degrees and into negatives. The video demonstrates how to use the unit circle to find the values of...
Brian McLogan
What are the trigonometric definitions of a right triangle
👉 Learn all about the trigonometry of right triangles. A right triangle is a triangle that has 90 degrees as one of its angles. The trigonometric identities of right triangles give us the relationship between the angles of a right...
Brian McLogan
Using the sine function to find the missing length of the hypotenuse
👉 Learn how to find a missing side length of a right triangle. A right triangle is a triangle that has 90 degrees as one of its angles. The trigonometric identities of right triangles give us the relationship between the angles of a...
Brian McLogan
How to Use Inverse Trigonometric Functions to Find the Angle of a Triangle
👉 Learn how to evaluate inverse trigonometric functions. When an angle is unknown but the value of one of the trigonometric functions of the angle is known, we can evaluate the value of the angle using the inverse trigonometric function...
Brian McLogan
How to write the three trigonometric ratios for a triangle
👉 Learn all about the trigonometry of right triangles. A right triangle is a triangle that has 90 degrees as one of its angles. The trigonometric identities of right triangles give us the relationship between the angles of a right...
Brian McLogan
What you need to know | Applications of Trigonometry
In this video I will show you what you should expect to know before starting your chapter on Applications of Trigonometry. In applications of trigonometry we will explore solving trigonomtric word problems, law of sines, cosines,...