Brian McLogan
Quotient rule of exponents without talking
👉 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
How to Simplify the Radical of 175
👉 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
Applying descartes rule of signs to determine the number or real positive & negative zeros
👉 Learn about Descartes' Rule of Signs. Descartes' rule of the sign is used to determine the number of positive and negative real zeros of a polynomial function. Knowing the number of positive and negative real zeros enables also to also...
Brian McLogan
Finding the difference between two radical expressions
👉 Learn how to add or subtract radicals. A radical is a number or an expression under the root symbol. Radicals can only be added or subtracted if the numbers or expressions under the roots are the same for all terms. To add or subtract...
Brian McLogan
Find the inverse of a square root function and sketch it's graph
👉 Learn how to find the inverse of a function. The inverse of a function is a function that reverses the "effect" of the original function. One important property of the inverse of a function is that when the inverse of a function is...
Curated Video
From 0 to 1 Data Structures & Algorithms in Java - Meet The Binary Heap - It's A Tree At Heart
The Binary Heap is logically a Binary Tree with specific constraints. The heap property and the shape property determine whether a Binary Tree is really a Heap. This clip is from the chapter "Heaps" of the series "From 0 to 1: Data...
Brian McLogan
Taking fourth root of a radical expression with multiple terms, fourth root
👉 Learn how to find the 4th root of an expression. To find the 4th root of an expression, if the exponent of the expression is a multiple of 4, then the 4th root of the expression is the base of the expression with an exponent that is...
Brian McLogan
Pre-Calculus - Adding Complex numbers - Online Tutor (-2+ root(-8)) + (5- root(-50))
Pre-Calculus - Adding Complex numbers - Online Tutor (-2+ root(-8)) + (5- root(-50))
Brian McLogan
solving by completing the square by factoring out a two
👉 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
Taking the fifth root of an expression, fifth root
👉 Learn how to find the 5th root of an expression. To find the 5th root of an expression, if the exponent of the expression is a multiple of 5, then the 5th root of the expression is the base of the expression with an exponent that is...
Brian McLogan
Learn how to take the cube root of a variable expression, cube root
👉 Learn how to find the 3rd root of an expression. To find the 3rd root of an expression, if the exponent of the expression is a multiple of 3, then the 3rd root of the expression is the base of the expression with an exponent that is...
Brian McLogan
How to write a rational exponent into radical form
👉 Learn how to convert a rational power to a radical. When the exponent of an expression is a fraction, we can evaluate/simplify the expression by converting the rational power into a radical where the denominator of the fractional...
Brian McLogan
Master Simplifying the higher root of numeric and algebraic expressions
Master Simplifying the higher root of numeric and algebraic expressions
Brian McLogan
Learn how to write an exponent with a rational power as a radical
👉 Learn how to convert a rational power to a radical. When the exponent of an expression is a fraction, we can evaluate/simplify the expression by converting the rational power into a radical where the denominator of the fractional...
Brian McLogan
Multiply a quadratic function and square root function to determine the domain
👉 Learn how to multiply two functions. We will explore the multiplication of linear, quadratic, rational, and radical functions. To multiply two functions, we simply algebraically multiply the rules (contents) of the two functions. We...
Brian McLogan
Show the zero exists by the Intermediate Value Theorem
Show the zero exists by the Intermediate Value Theorem
Curated Video
Graphical Solutions of Quadratic Functions: Finding Intercepts and Zeros
In this video, we learn how to graphically solve a quadratic function by looking at the intercepts of its graph. The X intercept represents the point where the graph crosses the X axis, and the roots or zeros are the solutions of the...
Brian McLogan
Finding the vertex and x-intercepts of a quadratic function
👉 Learn how to graph a quadratic equation in standard form. To do this we will explore multiple methods such as the intercept method, identifying the vertex, axis of symmetry and identifying points on the graph using a table. Once you...
Brian McLogan
How to determine the legs of a 45 45 90 triangle when given the hypotenuse
👉 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
Negative and Fractional Powers: Understanding the Rules and Relationships.
This video provides an explanation and demonstration of negative and fractional powers in mathematics. The presenter starts by explaining that negative powers can be written as fractions and then illustrates this concept using the powers...
IDG TECHtalk
How to use the df command: 2-Minute Linux Tips
In this Linux tip, learn how to use the df command. It reports on disk space. It’s important to check disk space from time to time to ensure that the system is not about to run out of space.
IDG TECHtalk
How to use the chkrootkit command: 2-Minute Linux Tips
In this Linux tip, we’re going to look at the chkrootkit command. It’s a command that will examine your system for rootkits -- generally malicious software that enables unauthorized access to a system.
IDG TECHtalk
How to use the sudo command: 2-Minute Linux Tips
earn how to use the sudo command. It’s a very important command for Linux security because it provides a way for individual users to run specific commands with the authority of root.