I think this is a great lecture for building a solid foundation in mathematics. I will also work hard on my college mathematics. Thank you.

Please make the engineering math lectures easy like this one.

I understand how angles in trigonometric functions are represented as positive and negative values now.

I gave up on math in high school, and just took statistics classes in college. I ended up getting a master's degree in computer science, and I'm reviewing middle and high school math to study linear algebra. Thank you for making this lecture so that I can recap through basic lectures like this.

Before studying mechanics, I had difficulty because I lacked basic mathematical knowledge, but after taking this course, I was able to quickly and easily improve my problems.

It's good for laying the foundation because it's easy to understand

If you want to quickly review middle and high school math, I recommend it. It's very helpful.