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Operations on Real Numbers: Addition and Subtraction
The video is a lesson on rational and irrational numbers and their mathematical operations. The teacher explains the difference between rational and irrational numbers and how they can be added and subtracted. The lesson includes...
Brian McLogan
Introduction to rationalizing the denominator to simplify a radical expression
👉 Learn how to divide rational expressions with a radical in the denominator. To divide rational expressions with a radical in the denominator, we rationalize the denominator by multiplying both the numerator and denominator by the...
Brian McLogan
Master adding subtracting multiplying and dividing rational and radical functions
Master adding subtracting multiplying and dividing rational and radical functions
Brian McLogan
Master Evaluating the half angle for sine, cosine, and tangent given a right triangle
Master Evaluating the half angle for sine, cosine, and tangent given a right triangle
Brian McLogan
Simplify a rational expression
Learn how to simplify rational expressions. A rational expression is an expression in the form of a fraction where the numerator and/or the denominator are/is an algebraic expression. To simplify a rational expression, we factor...
Brian McLogan
Solving a quadratic by completing the square
👉 Learn how to solve quadratic equations by completing the square. When solving a quadratic equation by completing the square, we first take the constant term to the other side of the equation and create a perfect square trinomial with...
Brian McLogan
Multiplying rational expressions
Learn how to multiply rational expressions. A rational expression is an expression in the form of a fraction where the numerator and/or the denominator are/is an algebraic expression. To multiply two rational expressions, we use the...
Brian McLogan
Learn how to divide a number by a complex number and the conjugate
In this video playlist I show you how to solve different math problems for Algebra, Geometry, Algebra 2 and Pre-Calculus. The video will provide you with math help using step by step instruction. Math help tutorials is just what you need...
Curated Video
Line Plots for Fractions
Make line plots to display measurements in fractions of a unit.
Curated Video
Subtracting Fractions: Separating Parts to Find the Difference
In this video, the teacher explains how to subtract fractions by separating the parts to find the difference. They emphasize the importance of understanding the numerator and denominator and avoiding the common mistake of subtracting...
Curated Video
Measuring Insects (Represent decimals using the number line and equivalent fractions)
A class has to measure the insects they are observing. They find that a worm is six tenths inches long and a centipede is one and four tenths inches long. How can we represent these lengths as decimals?
Curated Video
Comparison Using Benchmark Fractions
Using “Benchmark” fractions to compare fractions.
Curated Video
How to Write a Fraction as a Decimal
In this video lesson we will learn how to interpret a fraction as division. We will discover that a fraction can be written as the numerator divided by the denominator. We will perform long division to determine the decimal equivalent to...
Brian McLogan
Learn how to solve for y of a rational expression
👉 Learn how to solve literal equations. A literal equation is an equation where the unknown values are represented by variables. To solve a literal equation means to make one of the variables the subject of the formula. When the literal...
Brian McLogan
Solve a two step equation with fractions of different denominators
👉 Learn how to solve two step linear equations. A linear equation is an equation whose highest exponent on its variable(s) is 1. To solve for a variable in a two step linear equation, we first isolate the variable by using inverse...
Brian McLogan
Simplify expressions dividing simplify denominator, 7/(4 x 3 - 8)
👉 Learn how to simplify mathematics expressions. A mathematis expression is a finite combination of numbers and symbols formed following a set of operations or rules. To simplify a mathematics expression means to reduce the expression...
Brian McLogan
How to find the missing side of a right triangle given a 45 45 90 triangle
👉 Learn about the special right triangles. A special right triangle is a right triangle having angles of 30, 60, 90, or 45, 45, 90. Knowledge of the ratio of the length of sides of a special right triangle enables us to solve for any...
Curated Video
Algebraic Simplification: Focus on Fractions
The video is a lecture presentation on algebraic simplification, with a focus on fractions. The instructor explains and demonstrates how to add, subtract, multiply, and divide algebraic fractions through various examples. The video...
Brian McLogan
Subtract rational expressions then find the excluded values
Subtract rational expressions then find the excluded values
Brian McLogan
Given an angle evaluate all the trig functions
👉 Learn how to evaluate the six trigonometric functions of a given angle. When given an angle we locate the angle on the unit circle. Then using the coordinate of the terminal side of the angle on the unit circle and the definitions of...
Brian McLogan
Finding complementary and supplementary angles using radians
👉 Learn how to find the complement and the supplement of a given angle. Two angles are said to be complementary if they add up to 90 degrees (pi/2 in radians) and are said to be supplementary if they add up to 180 degrees (pi in...
Brian McLogan
Evaluate your six trig functions for a point on the unit circle
👉 Learn how to evaluate the six trigonometric functions of a given angle. When given an angle we locate the angle on the unit circle. Then using the coordinate of the terminal side of the angle on the unit circle and the definitions of...
Brian McLogan
Evaluating for the tangent of an angle using the difference formula, tan
👉 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...