Brian McLogan
Learn how to find the angle of a vector not in component form
Learn how to determine the magnitude and direction of a vector. The magnitude of a vector is the length of the vector. The magnitude of a vector is obtained by taking the square root of the sum of the squares of the components of the...
Brian McLogan
Find the missing length of a triangle using the sine function
In this video I show you how to find the missing length of a triangle using the sine function. We are given a right triangle and two side lengths and a missing length. We show a right triangle and label the hypotenuse, and two legs the...
Brian McLogan
Evaluate your six trig functions given cotangent
👉 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...
Brian McLogan
How to solve the missing length of a triangle using tangent
👉 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...
KnowMo
Average and Instantaneous Rates of Change
This video explains the concept of average and instantaneous rates of change and their significance in various fields such as science, stock markets, and space missions. It discusses how to calculate the rate of change using the gradient...
Tarver Academy
How to Find the Area of a Regular Pentagon
In This Episode, Tyler Teaches Us About How to Find the Area of a Regular Pentagon
TMW Media
Scalers and Vectors: Solving a problem, Part 3
Given certain parameters, how would you solve the second part of this problem? Scalers and Vectors, Part 6
Brian McLogan
Evaluate the six trig functions using a right triangle and secant of theta
👉 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...
Curated Video
Finding the Measure of Circumscribed Angles: Relationships with Central Angles
In this video, we learn how to find the measure of a circumscribed angle by understanding the relationship between central angles and circumscribed angles. By manipulating angles within quadrilaterals and using the properties of...
Brian McLogan
Pre-Calculus - Determine the Double Angle of Sine When Given a Triangle and Restrictions
👉 Learn how to evaluate the double angle of sine. The value of the sine of double a given angle can be obtained given the value of the sine of the angle. The value of the sine of double a given angle is obtained using the formula sin(2u)...
Brian McLogan
Evaluate an angle using the double angle of cosine from a triangle
👉 Learn how to evaluate the double angle of sine. The value of the sine of double a given angle can be obtained given the value of the sine of the angle. The value of the sine of double a given angle is obtained using the formula sin(2u)...
TMW Media
Scalers and Vectors: Learn about scalers and vectors
What is the difference between a scaler and a vector? How is a vector represented? Scalers and Vectors, Part 1
Brian McLogan
What are the definitions of trigonometric functions of any angle
👉 Learn about the trigonometric functions using the unit circle. The trigonometric function of an angle is the value of the trigonometric functions of sine, cosine, tangent, cosecant, secant and cotangent of that angle. To use the unit...
Brian McLogan
Sum and Difference identities of tangent using right triangles
👉 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
Learn how to solve a trigonometric equation using sum and difference formulas
👉 Learn how to solve equations using the angles sum and difference identities. Using the angles sum and difference identities, we are able to expand the trigonometric expressions, thereby obtaining the values of the non-variable terms....
Brian McLogan
How to determine the half angle of tangent when given a triangle
👉 Learn how to evaluate the tangent of a half-angle. When given the value of the tangent of an angle, we can evaluate the tangent of half the angle using the tangent half-angle formula. When the value of any other trigonometric function...
Brian McLogan
How to find x for a secant and a tangent line of a circle
Learn how to solve problems with secant lines. A secant line is a line that intersects a circle at exactly 2 points in contrast to a tangent line which is a line that touches a circle at exactly one point. When two secant lines...
Brian McLogan
Be careful when calculating the angle of a vector
Be careful when calculating the angle of a vector
Brian McLogan
Learn How To Determine the Unit Vector and It's Direction Given the Vector W
Learn how to determine the unit vector of a vector in the same direction. The unit vector is a vector that has a magnitude of 1. The unit vector is obtained by dividing the given vector by its magnitude.
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
Determining the Angle Given the Trig Function Value
👉 Learn how to evaluate the inverse of reciprocal trigonometric functions. Recall that the reciprocal trigonometric functions are given by the ratio of 1 and the corresponding trigonometric function. When an angle is unknown but the...
Brian McLogan
Evaluating the difference of two angles for the tangent 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
Learn How to Determine the Unit Vector and It's Direction Given the Vector W
Learn how to determine the unit vector of a vector in the same direction. The unit vector is a vector that has a magnitude of 1. The unit vector is obtained by dividing the given vector by its magnitude.
Brian McLogan
Converting Points from rectangular form to polar form
Learn how to convert points between rectangular and polar. Rectangular points measure the horizontal and vertical distance away from the origin whereas polar coordinates measure the direct distance and angle in standard position from the...