06 - Review of Essential Trigonometry (Sin, Cos, Tangent - Trig Identities & Functions)

In this lesson, we will review core concepts in trigonometry. We will first discuss the right triangle and the sin, cos, and tangent ratios. Next, we will discuss how these trig identities can be used to solve problems in math, physics, and engineering.

Finally, we will learn how to use the trig ratios to decompose a vector into x and y components in order to solve problems. Trigonometry is a core skill for all students in math, science, and engineering and is used extensively in calculus.

[AMcDub]

I’m a 39 year old who does nothing related to any of this. I did well in languages and literature/philosophy, etc, but struggled in science and math. I have absolutely no reason to be here but suddenly I’ve been utterly fascinated by math and science. I’ve been studying the Bible and ran across Chuck Missler who was brilliant in both science and theology and now I want to know all about the mathematics and sciences God created. And you know what? Suddenly it all makes sense. This teacher is one of the absolute best!

[User-kjcq]

THIS is how you teach! Anyway, I just want you to know that you're appreciated, and I'm glad that I found your channel. I've always struggled learning anything math related, but through your videos, I've truly "learned" how this works.

[babietee]

This is the video that helped it all click for me personally as a mature aged student reviewing trig for physics and maths. Thank you so much 🙏🏾

[lovernotfighter]

I learned this in College and was surprised to see that I still remember all of it. Thanks for the lessons they're very good for review. I also Use: these reminders. SOH, CAH, TOA. that way I never forget.

[yoiejff]

tip to remember the essential trig functions is to remember the term "SOH CAH TOA".
SOH = sin (opposite over hypotenuse),
CAH = cos (adjacent over hypotenuse),
TOA = tan (opposite over adjacent)

[lilac-heog]

you're such an effective tutor! pls never stop making educational videos. God bless.

[ivanhdz]

Thank God for having people like you! literally I should be paying you my whole college tuition!

[pistolpete]

You are a good teacher and a great instructor. I enjoy your presentations, . Thank you.

[KrisMyers-ghpu]

Thank you so much!!! This was very helpful in helping me understand how Trig is used in biomechanics.

[thegamthegame]

you are such an amassing tutor. i learnt so much from you, thanks so much may the good lord be with you and please never stop making educative videos

[eccentricaste]

Dude, you're amazing. You make trig look so simple and easy to understand. Thank you.

[patstevens]

I wish this guy had been my math teacher!

[wendigo]

Came here to learn physics (I'm in high school and was just interested) I am now essentially a master of mathematics so thanks I guess I always thought I was bad at math but I just needed motivation and my motivation was that I wanted to learn physics I'm now doing basic algebra in school and doing college level maths in my free time

[aliet]

Thank you! Your videos are so helpful and love the fact that there's no ads 😊😊🤞🏾🤞🏾

[liampickburn]

Thank you very much, great explanation! Looking forward to more video's to get me through my course!

[koyavenkateswararao]

The order of selecting the topics of physics and your teaching both are superb

[azadazadi]

WE WOULD LIKE TO HAVE SOMEONE IN OUR COLLEGE LIKE YOU. THANKS FOR YOUR TEACHING

[runt]

Great video. Writing basic components of problems on a blank sheet of paper really helped with exams. It reduced my anxiety to focus on what I knew.

[simpleman]

11:36 ( I'm just playing ) Sin of 90=1 Cos of 0=1
I only know that from watching your videos and thinking.
I loved the video where you talked about shining a flashlight, that is the one that started opening my eyes. The unit circle video was awesome. After watching Equation of a Circle
I started plotting my own incrementally. That helped me understand some of the other lessons.

[lightesque]

starting vector math in 3d calculus and was struggling with basic trig. this is helpful thankyou bossman