Brian McLogan
Learn how to divide a number by a binomial with a radical number
👉 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
Learn how to evaluate for the tangent of an angle using half angles
👉 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...
Brian McLogan
Simplifying a rational radical by multiplying by the conjugate
👉 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
Rationalize the denominator with a radical
👉 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
Pre-Calculus - Using the conjugate to simplify a rational complex number (3-i) / (1+i)
In this video series I show you how to simplify rational complex numbers. We do this by eliminating dividing by an imaginary number. We can either do this by multiplying by i which produces -1 or multiplying by the conjugate of a...
Brian McLogan
Learn how to rationalize the denominator with a rational exponent
👉 Learn how to rationalize the denominator. Rationalization is the simplification of a rational expression by multiplying the denominator and the numerator of the expression by the conjugate of the denominator. The conjugate of an...
Brian McLogan
How to verify an identity with a fraction on both sides
👉 Learn how to verify trigonometric identities having rational expressions. To verify trigonometric expression means to verify that the term(s) on the left hand side of the equality sign is equal to the term(s) on the right hand side. To...
Brian McLogan
Exam Review Find the y intercept given point and roots of a polynomial
Exam Review Find the y intercept given point and roots of a polynomial
Brian McLogan
Algebra 2 Learn how to multiply by conjugate to rationalize the denominator complex numbers, i/(3-i)
In this video playlist you will learn everything you need to know with complex and imaginary numbers i/(3 - i)
Brian McLogan
Algebra 2 - Dividing complex numbers by multiplying by the conjugate 3i / (4+2i)
In this video tutorial I show you how to divide complex numbers. Since complex numbers have an imaginary part which we cannot divide into other numbers we rewrite the expression by multiplying by i or the conjugate on the denominator or...
Brian McLogan
Pre-Calculus - Learn the basic operations of complex numbers
In this math tutorial I will show you how write a complex number in standard form after simple operations have been performed. You will learn how to find the value of real and imaginary numbers in a complex number and then write it in...
Brian McLogan
Simplifying a radical expression by rationalizing the denominator as a binomial
👉 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
Multiply by the conjugate to simplify a radical rational expression
👉 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
Apply foil to rationalize the denominator with two binomials ex 12
👉 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
Finding the Zeros Given One Complex Zeros
👉 Learn how to find all the zeros of a polynomial given one complex zero. A polynomial is an expression of the form ax^n + bx^(n-1) + . . . + k, where a, b, and k are constants and the exponents are positive integers. The zeros of a...
Brian McLogan
Master Dividing complex numbers by rationalizing the denominator
Master Dividing complex numbers by rationalizing the denominator
Brian McLogan
Simplifying a rational radical expression by multiplying by the conjugate
👉 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 with two radicals in 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
Multiplying a binomial by the conjugate to simplify with radicals
👉 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...
Professor Dave Explains
IIT/JEE Chemistry Practice #31: Acids and Bases
Practice REAL problems from actual past IIT/JEE exams with Professor Dave!
Learn French With Alexa
GCSE French Speaking: What Would You Change In Your Town?
In this video we look at this question: Qu’est-ce que tu aimerais changer dans ta ville ? - What would you like to change in your town? (AQA Theme 2 - Local, national, international and global areas of interest, Topic 1 - Home, town,...
Brian McLogan
Verifying an identity by multiplying by sine
👉 Learn how to verify trigonometric identities having rational expressions. To verify trigonometric expression means to verify that the term(s) on the left hand side of the equality sign is equal to the term(s) on the right hand side. To...
Brian McLogan
Multiplying by your conjugate to simplify a rational trigonometric expression
👉 Learn how to verify trigonometric identities having rational expressions. To verify trigonometric expression means to verify that the terms on the left-hand side of the equality sign is equal to the terms on the right-hand side. To...