Virtually Passed
Second Moment of Area Example 3
Ix is the second moment of area about the x axis. Choosing the value of dA is the important part for this problem. In this example where we're dealing with a section of a circle, it's easier to use cylindrical coordinates dA = r dr...
Virtually Passed
Dot product and angle between two vectors proof
The angle between two vectors can be found by using the cosine rule in a clever way.
Let's Tute
Probability Problem Solving with Examples
This video is a tutorial on probability problem-solving, where a teacher explains how to calculate probabilities based on given data in the form of tables and frequency distributions. The video covers different types of probability, such...
Let's Tute
Understanding Cell Errors in Excel Calculations Tutorial
In this Microsoft Excel tutorial, you will learn about cell errors in Excel calculations. Excel notifies users when a formula contains an error, and there are five options to correct it. By understanding these errors, users can ensure...
Brian McLogan
How to determine the measure of one exterior angle given the number of sides ex 3
👉 Learn how to find the measure of the exterior angle of a regular polygon. The exterior angle of a polygon is the angle between a side of the polygon and an outward extension of the adjacent side. The sum of the exterior angles of a...
Curated Video
Introduction to the Basic Equation of a Straight Line
This is a lecture presentation on the basic equation of a straight line. The presenter explains the general equation for a straight line (Y=MX +C), highlighting the importance of understanding the M (gradient) and C (Y intercept) values...
Brian McLogan
Evaluate for the nth term of a sequence given the ratio and first term in a geometric
👉 Learn how to find the nth term of a geometric sequence. A sequence is a list of numbers/values exhibiting a defined pattern. A number/value in a sequence is called a term of the sequence. A geometric sequence is a sequence in which...
Brian McLogan
Write the equation of a hyperbola given the foci and length of transverse axis
Learn how to write the equation of hyperbolas given the characteristics of the hyperbolas. The standard form of the equation of a hyperbola is of the form: (x - h)^2 / a^2 - (y - k)^2 / b^2 = 1 for horizontal hyperbola or (y - k)^2 / a^2...
Brian McLogan
Learn how to evaluate tangent using the difference formula of two angles
👉 Learn how to evaluate the tangent of an angle in degrees using the sum/difference formulas. To do this, we first express the given angle as a sum or a difference of two (easy to evaluate) angles, then we use the unit circle and the...
Brian McLogan
Rounding correctly for the law of cosines
Learn how to solve for the lengths of the sides and the measures of the angles of a triangle using the law of cosines. The law of cosines is used in determining the lengths of the sides or the measures of the angles of a triangle when no...
Brian McLogan
Evaluate the half angle of tangent for 105 degrees
👉 Learn how to evaluate the Sine of an angle using the half-angle formula. The half-angle formula for Sine is helpful when you need to determine the exact value of function given an angle but cannot use a calculator or the angle is not...
Curated Video
The Pythagorean Theorem: See a Proof and Learn How to Use the Theorem
During this video lesson, students will be introduced to the Pythagorean Theorem which is read a squared plus b squared equals c squared. Students will learn key vocabulary and how to identify the legs and hypotenuse of a right triangle....
The Business Professor
Cost Volume Profit Analysis - Sensitivity Analysis
A sensitivity analysis as part of the cost volume profit analysis shows how profits vary with changes in cost or volume.
Curated Video
Statistics for Data Science and Business Analysis - The Correlation Coefficient
This video explains correlation coefficient - the quantitative representation of correlation between variables. This clip is from the chapter "Descriptive Statistics Fundamentals" of the series "Statistics for Data Science and Business...
Brian McLogan
Master How to solve a quadratic equation by completing the square
So what I'd like to do is show you how to solve a quadratic equation and by completing the square. Now, typically, completing the square, we look into factoring. And if it's not factorable, we can use the quadratic formula. Now, a...
Curated Video
GCSE Secondary Maths Age 13-17 - Pythagoras & Trigonometry: Cosine Rule - Explained
SchoolOnline's Secondary Maths videos are brilliant, bite-size tutorial videos delivered by examiners. Ideal for ages 13-17, they cover every key topic and sub topic covered in GCSE Maths in clear and easy to follow steps. This video...
Curated Video
GCSE Secondary Maths Age 13-17 - Algebra: Solving Equations - Explained
SchoolOnline's Secondary Maths videos are brilliant, bite-size tutorial videos delivered by examiners. Ideal for ages 13-17, they cover every key topic and sub topic covered in GCSE Maths in clear and easy to follow steps. This video...
Brian McLogan
Solve equations using the double angle formula
👉 Learn how to use the double angle identities to solve trigonometric equations. When we have equations with a double angle we will apply the identities to create an equation that can help solve by inverse operations or factoring. We...
Catalyst University
Crystal Lattice Structures: Density Calculation 5
Crystal Lattice Structures: Density Calculation 5
Virtually Passed
Conservation of energy Part 1 definition of work
Providing a more general form of work as opposed to the well known, but only specific case of work, W=Fd. Also walk through a very simple example of the work done by a force on a block.
TMW Media
Area Of Trapezoids: The formula to calculate the area of a trapezoid
What is the area of triangle 1 and 2 of the trapezoid? What is the difference between the area of the two triangles? Area Of Trapezoids, Part 2