Brian McLogan
How to find the exact value using the half angle formula for cosine
👉 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
Using the the half angle formula for sine to evaluate
👉 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
Learn how to integrate a rational expression by simplifying first with rational powers
👉 Learn how to evaluate the integral of a function. The integral, also called antiderivative, of a function, is the reverse process of differentiation. Integral of a function can be evaluated as an indefinite integral or as a definite...
Brian McLogan
What are all the rule of exponents that will help us when simplifying expressions with rad
👉 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
Simplifying a radical expression when the radicand is a rational expression
👉 Learn how to find the square root of rational expressions. To find the square root of a rational expression, we first express the rational expression as the square root of the numerator divided by the square root of the denominator....
Brian McLogan
Pre-Calculus - Subtraction of two functions f(x) = 2x -5 , g(x) = 2-x
👉 Learn how to add or subtract two functions. Given two functions, say f(x) and g(x), to add (f+g)(x) or f(x) + g(x) or to subtract (f - g)(x) or f(x) - g(x) the two functions we use the method of adding/subtracting algebraic expressions...
Brian McLogan
Learn How to Simplify the Square Root of a Large Number, Sqrt(128)
👉 Learn how to find the square root of a number. To find the square root of a number, we identify whether that number which we want to find its square root is a perfect square. This is done by identifying a number which when raised to...
Brian McLogan
Dividing Rational Expressions
👉 Learn how to simplify expressions by dividing its terms. Remember that dividing a fraction is the same as multiplying by the reciprocal. When multiplying expressions, each individual term of the expression is multiplied to its like...
FuseSchool
Expanding Single Brackets
In algebra expanding brackets means to remove the brackets. 2(3x - 4) = 6x - 8. Brackets and parentheses both mean the same thing. In this video we’ll look at how to expand single brackets 2(3x - 4), and in another video we’ll discover...
FuseSchool
Expanding Double Brackets
In this video we’re going to look at how to expand double brackets. Once we know how to expand double brackets, we’ll also be able to expand triple brackets and so on, so we’ll have a look at a triple bracket example towards the end of...
Brian McLogan
Write an expression as a single trigonometric function using sum and difference formula
👉 Learn how to write a given sum or difference of two angles formula expression as a single sum/difference of angles trigonometric function. To do this, we first identify the trigonometric function for which its sum/difference formula is...
Brian McLogan
What properties are important to know for simplifying radical expressions
👉 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 do I have to know to multiply and divide rational expressions
Learn how to multiply/divide rational expressions. A rational expression is an expression in the form of a fraction, usually having variable(s) in the denominator. Recall that to multiply two fractions, we multiply the numerators...
Curated Video
Solving Oblique Triangles with the Law of Cosines
This video explains how to find the angle measures and side lengths of an oblique triangle when all the side lengths are given. It introduces the law of cosines as a formula that relates the sides and angles of a triangle. The video...
Brian McLogan
How to solve a word problem involving the cube root
👉 Learn how to solve literal equations involving formulas. 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...
Brian McLogan
Using proportions to find the value given a certain percentage, 120% of what is 90?
👉 Learn how to solve problems using percents. When solving problems with percents we will either convert the percents to decimal form or use proportions to solve. We will look to solve for the percent of change, the original price,...
Brian McLogan
Learn how to solve a word problem using square roots, velocity and distance
👉 Learn how to solve literal equations involving formulas. 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...
Institute for New Economic Thinking
Simon Johnson: The Challenge of Large, Complex Financial Institutions (6/7)
The panelists discuss large complex financial institutions at INET's Bretton Woods Conference on April 9, 2011. The speaker in this segment is Simon Johnson, Professor of Entrepreneurship, Global Economics and Management at the Sloan...
Brian McLogan
Learn How to Simplify the Square Root of a Number by Prime Factorization, Sqrt(81)
👉 Learn how to find the square root of a number. To find the square root of a number, we identify whether that number which we want to find its square root is a perfect square. This is done by identifying a number which when raised to...
Brian McLogan
How Does the Rules of Exponents Allows to Multiply and Divide by Monomials
👉 Learn about the rules of exponents. An exponent is a number which a number is raised to, to produce a power. It is the number of times which a number will multiply itself in a power. There are several rules used in evaluating...
Brian McLogan
Learn how to use quadratic formula to determine the roots of an equation
👉 Learn how to solve quadratic equations using the quadratic formula. A quadratic equation is an equation whose highest power on its variable(s) is 2. The quadratic formula is a formula which can be used to find the roots of (solve) a...
Brian McLogan
Learn how to simplify an expression by using distributive property, 3(x^2 + 7x)
👉 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
Simplify a radical expression with variables
👉 Learn how to simplify the square root of an expression. The square root of an expression is an expression which will multiply itself twice to give the original expression. To simplify the square root of an expression, we...
Brian McLogan
Find the domain from division of two functions
👉 Learn how to divide two functions. We will explore the division of linear, quadratic, rational, and radical functions. To divide two functions, we simply algebraically divide the rules (contents) of the two functions. We will then...