Today, it’s going to be short. My quick question for you is:
What is the square root of x squared?
When I was still giving tutoring sessions, I asked this question to many high school and college students. Do you know how many knew the correct answer? Two.
This post is already the third in a row where I want to draw your attention to things that are worth reviewing at the very beginning of your mathematics studies at university. A quick review of them will make your life in university much easier.
Today it’s the turn of the quadratic function.
Quadratic function? The topic of the quadratic function is, of course, very broad, and I don’t mean at all that you should take a high school textbook and go through the entire chapter from cover to cover. Let’s just focus on a few important details, nuances, and traps.
Quantifiers – but they weren’t really there…
Alright, but who needs this? In most mathematical definitions and theorems, concepts like “every” and “exists” are used. See how to use them correctly.
If you’ve been studying mathematics at university for a while now, you’ve probably noticed that most of the material covered in high school doesn’t directly help you at university. If you’re just starting out – take note of this.
Let’s get to work. In this and the next posts, I’ll show you a few details, understanding which will greatly ease your university studies. We start with… The geometric interpretation of absolute value (as distance).
This post is dedicated to a piece of a high school exam question sent to me by a high school graduate via email. It’s worth taking a look out of curiosity and never repeating again that university math is harder than advanced high school math.
Here I show the derivation of the height formula in a right-angled triangle.
