Brian McLogan
Learn how to evaluate the secant of an angle using the unit circle
👉 Learn how to evaluate trigonometric functions of a given angle. Given an angle greater than 2pi in radians, to evaluate the trigonometric functions of the given angle, we first determine the smallest positive coterminal angle of the...
Brian McLogan
Solve a Trig Equation Fast
in this video I will show you how to derive the quadratic formula.
Brian McLogan
Simplifying Trig Expressions By Factoring ex 3
Simplifying Trig Expressions By Factoring ex 3
Brian McLogan
Pre-Calculus - How to simplify a basic trigonometric expression - help me with math - cotθ secθ
In this video series I will show you how to simplify trigonometric expressions. We will simplify these expression to either a single trigonometric term or number. To simplify we will use trigonometric identities such as Pythagorean,...
Brian McLogan
Master How to evaluate using the cofunction identities
Master How to evaluate using the cofunction identities
Brian McLogan
Pre-Calculus - How to simplify a rational trigonometric expression cos^2(θ)/cot^2(θ)
In this video series I will show you how to simplify trigonometric expressions. We will simplify these expression to either a single trigonometric term or number. To simplify we will use trigonometric identities such as Pythagorean,...
Brian McLogan
Pre-Calculus - Adding two rational trigonometric expressions (cosθ/sinθ)+(sinθ/cosθ)
In this video series I will show you how to simplify trigonometric expressions. We will simplify these expression to either a single trigonometric term or number. To simplify we will use trigonometric identities such as Pythagorean,...
Virtually Passed
Relative Motion with rotating reference axes Example (part 2)
To solve for the acceleration of a point A moving relative to an object that is rotating then we can use the relative velocity (for rotating reference frames) equation: Aa = Ab + Arel + Ap/b + 2 w x Vrel
KnowMo
Trigonometry: Understanding the Tangent Function
The video is a lecture on the tangent function and its relation to trigonometry. The lecturer explains the importance of accurately labeling triangles and knowing the specific values of the tangent function at certain angles. They also...
Virtually Passed
Method of sections example 1
Method of sections is a technique used to find the internal forces in a truss. Draw a FBD of a section of the truss and make cut sections though the members that you wish to analyze. Apply equilibrium equations (sum of forces and sum of...
Math Fortress
Calculus III: The Dot Product (Level 1 of 12)
This video goes over the dot product also known as the scalar product. This video covers the geometric interpretation of the dot product by going over 5 distinct cases where the angle between the vectors varies.
Brian McLogan
ACT SAT Prep How to determine the SINE of an angle given a right triangle and it's sides
ACT SAT Prep How to determine the SINE of an angle given a right triangle and it's sides
Flipping Physics
Average and Instantaneous Power Example
An 8.53 kg pumpkin is dropped from a height of 8.91 m. What is the power delivered by the force of gravity (a) over the whole displacement of the pumpkin, (b) right after the pumpkin is dropped and (c) right before the pumpkin strikes...
Brian McLogan
Mistake Students Make Solving Trig Equations
In this video I will highlight what people get wrong when solving trigonometric equations, why they get them wrong and what you can do to improve your understanding. Timestamps: 0:00 Intro 0:25 Mistake #1 0:58 Mistake #2 1:30 How to...
Brian McLogan
How to determine the hypotenuse, opposite, and adjacent legs of 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...
Flipping Physics
A Problem to Review SOH CAH TOA and the Pythagorean Theorem
This video goes through a right triangle problem, finding the length of two sides and an angle. It is a basic review of SOH CAH TOA and the Pythagorean Theorem; very fundamental items in Physics.
Zach Star
The Lost Fisherman Problem - What is the most efficient way back to shore?
The Lost Fisherman Problem - What is the most efficient way back to shore?
Brian McLogan
How to determine the quadrant our constraint leaves us in
👉 Learn how to determine the quadrant given the constraint. The plane is divided into four equal parts called the quadrants with the region between the positive x-axis and the positive y-axis called the 1st quadrant having angles 0 to 90...
Brian McLogan
Verifying a trigonometric Identities
👉 Learn how to verify rational trigonometric identities involving the addition and subtraction of terms. To verify trigonometric expression means to verify that the term on the left-hand side of the equality sign is equal to the term on...
Flipping Physics
A Three Force Example of Newton's 2nd Law with Components
Finding the net force caused by three brothers fighting over a stuffed turtle. We break one vector in to components and find the components of the net force in order to solve for the net force.
Math Fortress
Calculus III: The Cross Product (Level 1 of 9)
This video introduces the third way of multiplying vectors called the cross product also known as the vector product and sometimes refereed to as the area product. This video will cover the geometric definition of the cross product.
Brian McLogan
Finding the angle between two vectors
Learn how to determine the angle between two vectors. To determine the angle between two vectors you will need to know how to find the magnitude, dot product and inverse cosine. Then, the angle between two vectors is given by the inverse...
Flipping Physics
Net Torque on a Door Problem
Three people push on a door. We determine the net torque.