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Brian McLogan
Write the quotient in Standard Form
In this video series I show you how to simplify rational complex numbers. We do this by finding the complex conjugate of our denominator and multiplying both the numerator and denominator by this expression. It is important to use the...
Brian McLogan
Simplify an expression by rationalizing the denominator
👉 Learn how to divide rational expressions having square root binomials. To divide a rational expression having a binomial denominator with a square root radical in one of the terms of the denominator, we multiply both the numerator and...
Brian McLogan
Rationalizing the denominator
👉 Lean 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
Practicing rationalizing the denominator with binomial denominator
👉 Learn how to divide rational expressions having square root binomials. To divide a rational expression having a binomial denominator with a square root radical in one of the terms of the denominator, we multiply both the numerator and...
Brian McLogan
Simplify radical expressions by finding quotient, fourth root
👉 Learn how to find the 4th root of rational expressions. To find the 4th root of a rational expression, we first express the rational expression as the 4th root of the numerator divided by the 4th root of the denominator. Next we...
Brian McLogan
Applying the 4 operations to function then determining the domain
👉 Learn how to apply operations to functions such as adding, subtracting, multiplying, and dividing to two functions. To add/subtract/multiply or divide two functions, we algebraically add/subtract/multiply or add the rules (contents) of...
Brian McLogan
How to multiply two functions and identify domain
👉 Learn how to apply operations to functions such as adding, subtracting, multiplying, and dividing to two functions. To add/subtract/multiply or divide two functions, we algebraically add/subtract/multiply or add the rules (contents) of...
Brian McLogan
Determine all of the solutions for a trigonometric equation with cosine and tangent
👉 Learn how to solve trigonometric equations by factoring out the GCF. When solving trigonometric equations involving the multiples of the same trigonometric function. It is very useful to collect similar trigonometric functions together...
Brian McLogan
What are the key parts to a radical expression
👉 Learn the basics of simplifying radicals. A radical is an expression having the root/radical symbol. A radical expression can also be rewritten as an expression with fractional/rational exponent. The number outside the radical symbol...
Brian McLogan
What you need to know | Trigonometry
In this video we will cover the key topics you will need to know before starting our chapter on Trigonometry in Pre-calculus. We will start by working through the Pythagorean Theorem and then working through the trigonometric identities...
Khan Academy
How to Rationalize a Denominator, Exponent Expressions and Equations, Algebra I
"Sal, why do we care? Why must we rationalize denominators?" Acknowledging these (possibly pleading) concerns, Sal explains the reasons behind rationalizing a denominator before demonstrating how to do it several times. Though he admits...
Khan Academy
Khan Academy: Algebra: How to Rationalize a Denominator
Video working through multiple examples of rationalizing the denominator. Includes some examples with using the conjugate of the denominator as well as an example with variables. Video is also included in the Algebra: ck12.org strand....