Brian McLogan
Evaluate cosine of an angle using the difference of two angles formula
👉 Learn how to evaluate the cosine of an angle in radians 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...
Curated Video
The Complete Excel Guide: Beginners to Advanced - Module 17 - Practice Exercise
Let's do a practice exercise. This clip is from the chapter "Excel 2019 Beginners: Advanced Formula Creation" of the series "The Complete Excel Guide: Beginners to Advanced".In this section, we'll explore and create some advanced formulas.
Brian McLogan
What are the formulas for arithmetic and geometric sequences
👉 Learn about sequences. 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. There are many types of sequence, among which are: arithmetic and geometric...
Brian McLogan
Given the vertices and focus find the standard form of the hyperbola
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
Math tutorial for using the sum of two angles formula for the tangent of 105 degrees
👉 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
Pre-Calculus - Using the Double Angle Formula to Evaluate for Cosine of an Angle and 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)...
Brian McLogan
Pre-Calculus - Solve an Equation Using the Double Angle Formula of Sine
👉 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...
Brian McLogan
How to verify an identity with the sum and difference formulas
👉 Learn how to verify the sum and difference of two angles trigonometric identities using the sum/difference formulas. To verify an identity means to ascertain that the left-hand side is equal to the right-hand side of the equality sign....
Brian McLogan
Learn how to evaluate using the difference of two angles for sine
👉 Learn how to evaluate the sine of an angle in radians 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
Find the area of an oblique triangle using a formula
👉 Learn how to find the area of a triangle. The area of a triangle is the measure of the region enclosed by the triangle. There are several methods that can be used to find the area of a triangle depending on the available information....
The Art Assignment
Art Cooking: Frida Kahlo | The Art Assignment | PBS Digital Studios
We explore the recipes of artist Frida Kahlo, whose work celebrated Mexico's history, vivid colors, and it's FOOD. On the menu: 1) Chiles Stuffed with Cheese aka Chiles Rellenos 2) White Rice with Plantains 3) Nopales Salad 4) Tequila.
Curated Video
The Complete Excel Guide: Beginners to Advanced - Order of Operations
Learn about the order of operations. This clip is from the chapter "Excel 2019 Beginner: Creating Workbooks" of the series "The Complete Excel Guide: Beginners to Advanced".This section aims to teach you how to create a workbook in Excel.
Brian McLogan
Master Verifying an identity using the double angle formulas
Master Verifying an identity using the double angle formulas
Curated Video
Calculating Averages in Excel Using Formulas and Autosum Feature
In this tutorial, the teacher demonstrates how to quickly and easily calculate the average of a group of numbers in Excel. By using the simple formula "=average" and highlighting the desired cells, students can efficiently obtain...
Curated Video
Five Ways to Fix #VALUE Errors in Microsoft Excel
In this tutorial I'll show you five different reasons why you may get #VALUE! error messages in Microsoft Excel and how to fix each of them properly.
Brian McLogan
How to find the foci, center and vertices, and asymptotes of a hyperbola
Learn how to graph hyperbolas. To graph a hyperbola from the equation, we first express the equation in the standard form, that is in the form: (x - h)^2 / a^2 - (y - k)^2 / b^2 = 1 for horizontal hyperbola or (y - k)^2 / a^2 - (x - h)^2...
Brian McLogan
How to evaluate the half angle for the tangent function
👉 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
What are the sum and difference formulas for sine
👉 Learn all about sum and difference angle identities. In this video playlist, you will learn how to evaluate, solve, simplify and verify using sum and difference angle identities. We will evaluate using angles not found on the unit...
Curated Video
GCSE Secondary Maths Age 13-17 - Algebra: Subject of a Formula - 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 - Number: Fractions - 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
The Complete Excel Guide: Beginners to Advanced - Overview of Formulas
In this video, let's take a quick overview of formulas. This clip is from the chapter "Excel 2019 Beginners: Formulas and Functions" of the series "The Complete Excel Guide: Beginners to Advanced".In this section, we'll explore formulas...
Brian McLogan
Master how to determine the vertices, co vertices and foci of an ellipse
Welcome ladies and gentlemen. So what I'd like to do is show you how to determine the focus, vertices, as well as co-vertices of an ellipse when the center is at the origin. And again, we know that the center is at the origin because the...
Curated Video
Rewriting Linear Equations (includes Factoring)
In this video, the teacher explains how to rewrite literal equations and formulas using inverse operations. They cover different forms of equations, such as slope-intercept and standard form, and provide examples for solving for...
Brian McLogan
Learning to solve an equation by using the 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....