In this tutorial, we learn how to subtract rational expressions. If they have different denominators, you will first need to get them the same denominator. To do this, you will need to find the lowest common denominator. Factor the denominators that you have and figure out wha ...more
From Ramanujan to calculus co-creator Gottfried Leibniz, many of the world's best and brightest mathematical minds have belonged to autodidacts. And, thanks to the Internet, it's easier than ever to follow in their footsteps (or just finish your homework or study for that next ...more
From Ramanujan to calculus co-creator Gottfried Leibniz, many of the world's best and brightest mathematical minds have belonged to autodidacts. And, thanks to the Internet, it's easier than ever to follow in their footsteps (or just finish your homework or study for that next ...more
In arithmetic, the simplest expression is far preferred to the long eye-boggling one. Stop making your expressions painful optical illusions by watching this tutorial on how to write rational expressions in the lowest terms. By factoring and then canceling out like expression ...more
This is an instructional video on how to "complete the square", which is an algebraic technique for solving a quadratic equation. The instructor starts by showing you what a quadratic equation actually is. He describes what "completing the square" actually means, and how it ca ...more
To write the sum or difference of logarithms as a single logarithm, you will need to learn a few rules. The rules are ln AB = ln A + ln B. This is the addition rule. The multiplication rule of logarithm states that ln A/b = ln A - ln B. The third rule of logarithms that deals ...more
Here we look at squaring expressions that involve radicals because people tend to make some common mistakes while solving such expressions. Take 5 times the square root of y quantity squared, the answer here is not 5y. Here's the reason, square means to multiply something with ...more
In this video tutorial from Drawing Now, learn how to draw the character Robin from Batman & Robin. You will need to first draw a circular shape for Robin's head. Then draw ears as well as a series of lines that looks like hair. These lines will actually serve as the raw form ...more
In this video the instructor shows how to divide rational expressions that contain trinomials. A division containing two fractions can always be turned into a multiplication by multiplying the first fraction by the reciprocal of the second fraction. This way any division can b ...more
Animating a Camera: Tracking to a Null Object. Rick Gerard presents a five minute tutorial movie as the first in a series that teaches basic After Effects Camera animation. In this first example you'll learn how to simplify animating a camera over a still image and how to cont ...more
This video demonstrates how to solve algebraic equations of the first degree for the variable, "X"; in other words, the variables contained in these equations are not raised to any power other than one, which is implicit. The video starts out with an example of such an algebra ...more
Emoji have taken over the world, so there's a good chance you regularly use (or overuse) emoji on your iPhone's keyboard just like everyone else. But before emoji were popular, there were emoticons, short for "emotion icons" — and iOS has a secret emoticon keyboard just waitin ...more
Over the past few months, Google has prioritized the development of its video communications products as the demand for social distancing solutions continues to increase in response to the COVID-19 pandemic. After the well-publicized move of making Google Meet free for all ca ...more
On Tuesday, at the Unite Berlin developers conference, Unity unveiled new tools designed specifically for augmented reality that could literally raise the technology to the next level. Coming this fall, a new extension for Unity called Project MARS (short for Mixed and Augmen ...more
Video: . Step 1: Today We Are Going to Draw an Old Man's Face. Let's Start with a Rectangle in Perspective. That's Right, We Should Start with Curving in Some Basic Shapes and Then to Make the Face from That. We Should Put Down the Horizon Line with Two Vanishing Points. Draw ...more
The year 2020 was a pivotal span of time during which the word "virtual" took on a brand new meaning. Instead of referring to VR or augmented reality, the term was hijacked to describe meeting across long distances through a variety of software tools, most often through video. ...more