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Tom Teaches Math
United States
เข้าร่วมเมื่อ 4 ม.ค. 2013
I'm a secondary math teacher in Texas. All videos are created for my math students.
Parametric Equations Projectile Motion
Learn how to use parametric equations to solve projectile motion problems in this informative and engaging video. We’ll explore the concepts of initial speed, angle of projection, and height above the horizontal to model the path of a projectile. With clear explanations and step-by-step examples, you’ll gain a deeper understanding of how to apply parametric equations to real-world situations.
มุมมอง: 1 748
วีดีโอ
Law of Cosines (SSS AND SAS)
มุมมอง 225ปีที่แล้ว
How do you use the Law of Cosines to find sides (SAS) and find angles (SSS)? In this video, we use the Law of Cosines to find missing sides and angles in oblique triangles. TIMESTAMPS: 0:00 Basics and Introduction 0:55 Example 1 - Finding a Side (SAS) 2:22 Example 2 - Finding an Angle (SSS) #lawofcosines #findingaside
Introduction to Polar Coordinates and Converting to Rectangular Form
มุมมอง 71ปีที่แล้ว
What is the polar coordinate plane and how do we convert points between rectangular and polar form? We start this video by graphing polar points, then we learn how to convert between polar and rectangular/Euclidean form. TIMESTAMPS: 0:00 Introduction and Definitions 0:40 Plotting points on the polar plane 2:23 Converting polar points to rectangular 6:09 Converting rectangular points to polar 9:...
Solve Trig Equations Non-Unit Circle Values (using a calculator)
มุมมอง 716ปีที่แล้ว
How do you solve trig equations with the values are not on the unit circle? When your solving results in decimals, you can the inverse trig function in the calculator to find the solution. Then, use reference angles to find he other quadrant solutions. TIMESTAMPS: 0:00 Example 1 (Basic): cos θ = 1/5 2:39 Example 2 (Intermediate): -4sinx-7=-6 5:31 Example 3 (Quadratic): tan^2x 3tanx-4=0
Solve Quadratic Trig Equations
มุมมอง 100ปีที่แล้ว
How do you solve trig equations that have something squared in them? In this video I show how to use a U-substitution to rewrite trigonometric equations as quadratics, which makes them easier to solve. We use the unit circle to solve these particular problems. TIMESTAMPS: 0:00 Example 1 1:43 - Example 2 (requires Pythagorean Identity) #trigequations #unitcircle
Transformations to Sine and Cosine
มุมมอง 261ปีที่แล้ว
How do we find amplitude period, phase shift, and vertical shift? This video uses an interactive applet to show how changes in a, b, c and d affect the graph for sine and cosine (periodic) functions. TIMESTAMPS: 0:00 Introduction 0:31 Desmos Interactive Applet 3:27 Notes / Summary 3:58 Example 1 5:13 Example 2 7:01 Example 3 10:09 Summary / Wrap-Up #transformations #sinegraphs
Linear vs Angular Velocity (Precalculus)
มุมมอง 2.6Kปีที่แล้ว
What is the difference between linear velocity and angular velocity? In this video we will derive the formula for linear velocity (or speed) and angular velocity. Then, we will use those formulas and compare and contrast the two rates. TIMESTAMPS: 0:00 Formula for Linear and Angular Velocity 1:05 Comparing and contrasting linear and angular velocity visually. 2:18 Example 1 - Finding Linear and...
How to Graph Sine and Cosine
มุมมอง 250ปีที่แล้ว
How do I graph sin and cos? In this video, we use the unit circle to derive the graphs for sine and cosine. These periodic functions are very similar, but there are some slight differences. Applet used in video: www.geogebra.org/m/abxasz2r TIMESTAMPS: 0:00 Derive Sine Graph 3:31 Interactive Visualization of Sine 4:20 Derive Cosine Graph 6:28 Interactive Visualization of Cosine 6:55 Compare and ...
Vector Basics (Component Form, Magnitude, and Direction)
มุมมอง 752 ปีที่แล้ว
How do you find magnitude and direction of a vector? How do you write a vector in component form? This video will discuss how to find all of the above. We define vector, component form, magnitude, direction, standard position, and equivalent vectors. Then, we work through several problems about how to find component form when you have magnitude and direction, and how to find magnitude and direc...
Converting Rectangular and Polar Equations (9 Examples)
มุมมอง 752 ปีที่แล้ว
How do you convert equations between rectangular and polar forms? This video covers a variety of problems step-by-step by using some properties of polar functions. TIMESTAMPS: 0:00 Basics and Introduction 0:14 Converting Rectangular to Polar (4 Examples) 2:59 Converting Rectangular to Polar (3 Examples) 5:25 Converting Polar to Rectangular (2 Examples)
Vector Addition, Subtraction, Scalar Multiplication (Algebraically and graphically) #vectors
มุมมอง 3632 ปีที่แล้ว
How do you add vectors, subtract vectors, and use a scalar on vectors? This video shows how to do all of these vector operations both algebraically and graphically. This video is for a precalculus class TIMESTAMPS: 0:00 Scalar Multiple Algebraically and Graphically 2:04 Vector Addition & Subtraction Algebraically 3:14 Vector Addition Graphically 4:57 Vector Subtraction Graphically 6:34 Practice...
How to graph Tangent and Cotangent (with asymptotes and zeros)
มุมมอง 1.2K2 ปีที่แล้ว
How do you graph y=tan(x) and y=cot(x)? Why do the graphs look the way they do? How do I know where the asymptotes and zeros are for each graph? This video answers all these questions and derives the graphs for these two periodic trig functions. APPLET USED IN VIDEO: www.geogebra.org/m/UjjwuM8p TIMESTAMPS: 0:00 Basics and Introduction 0:37 Deriving Graph of Tangent 2:18 Period, Asymptotes, and ...
How to graph y=sec(x) and y=csc(x) (with asymptotes, domain and range)
มุมมอง 1.8K2 ปีที่แล้ว
How do you graph secant and cosecant? And, how do these graphs compare to the graphs of sin(x) and cos(x)? In this video, we answer these questions by deriving the graphs for secant and cosecant, and then identifying the domain, range, and asymptotes of said functions. (If you found this video helpful and want to say "thanks," you can buy me a coffee here: ko-fi.com/tomteachesmath) TIMESTAMPS: ...
Rotation Rules (and how to use patty paper)
มุมมอง 2.3K2 ปีที่แล้ว
(If you found this video helpful and want to say "thanks," you can buy me a coffee here: ko-fi.com/tomteachesmath)
Solve Equations Graphically
มุมมอง 1K2 ปีที่แล้ว
In this video we explore how to solve equations graphically. We solve one linear equation, one quadratic equation, and two trigonometric equations. TIMESTAMP: 0:00 Example 1 - Linear 1:09 Example 2 - Quadratic 2:10 Example 3 - Trig 3:45 Example 4 - Trig #solveequations
Eliminate the Parameter (Parametric Equations)
มุมมอง 1502 ปีที่แล้ว
Eliminate the Parameter (Parametric Equations)
Parametric Equations on the TI Calculator
มุมมอง 9862 ปีที่แล้ว
Parametric Equations on the TI Calculator
Unit Vectors (linear combinations, standard unit vectors, same direction, etc..)
มุมมอง 2372 ปีที่แล้ว
Unit Vectors (linear combinations, standard unit vectors, same direction, etc..)
Solve Trig Equation with Unit Circle (4 examples)
มุมมอง 4262 ปีที่แล้ว
Solve Trig Equation with Unit Circle (4 examples)
Solving Equations with 1 and 2 Radicals #radicalequations
มุมมอง 652 ปีที่แล้ว
Solving Equations with 1 and 2 Radicals #radicalequations
Herons Formula (triangle area given 3 sides)
มุมมอง 1212 ปีที่แล้ว
Herons Formula (triangle area given 3 sides)
Systems of Equations (with a table) - Motion Problems
มุมมอง 2922 ปีที่แล้ว
Systems of Equations (with a table) - Motion Problems
Point on Terminal Side of an Angle/Theta
มุมมอง 7K2 ปีที่แล้ว
Point on Terminal Side of an Angle/Theta
Permutations and Combinations (Calculator)
มุมมอง 1.1K2 ปีที่แล้ว
Permutations and Combinations (Calculator)
Fundamental Counting Principle and Factorial Rule of Counting
มุมมอง 8402 ปีที่แล้ว
Fundamental Counting Principle and Factorial Rule of Counting
Rewriting repeating decimal as fraction (infinite geometric series)
มุมมอง 1.3K2 ปีที่แล้ว
Rewriting repeating decimal as fraction (infinite geometric series)
Thank you soo much to explain with the pattern. I had problem with the n - 2 thing. 😊
mistake at 4:00 30*90x=2700x
I'll say this helped me out a bunch. God bless you brother!!
Aren’t lines of latitude parallel to each other? Please explain
Yes but all lines of latitude are not “lines” in spherical geometry…. Just the equator. With other lines of latitude you would have to keep “turning” to create it …. So it isn’t a straight line.
Nice and clear - thanks
Thanks Mr Wahner
The first question is wrong 40 take away 12.5 does not equals 37.5 the correct answer for the whole equation is Maria travelled 55 mph and John travelled 60 mph
Thank you 🙏🏻🙏🏻
underrated math teacher
very comprehensive and cool video thanks 🔥🔥🔥
i think someone is trying to call u lol
goat
Thank you. I actually used to struggle with remembering this.
Not only did you help with solving an equation, but also gave examples and help identifying the answer! I really appreciate this so much, thank you!
Good explanation. This helped - thank you.
Thank you so much! this helps so much in math class!
thanks alot ❤️
funny thing is that this video was released 2 days after i joined youtube
You’re very welcome!
Brilliant explanations. Thank you.
hi
Thank u so much sir for this. I've bben struggling with this ch in geometry
You’re very welcome!!
Thanks so much
I LOVE U SO MUCH U SAVED ME AND MY FRIEND FROM FAILING MATH 🫶🫶🫶
Haha you got this!!!
Up se koun koun yha tak pahuch gaya
love you thank you so much🙏🏽🙏🏽
Thanks sir ❤
This is the last video in silicon valley high school online geometry course as of now (idk if it changes) but thats cool ig
Well then congrats on finishing the course!
Great video!!! :D
Thank you so much for this video. I had a hard time understanding this, and went to look if your channel had a video on dilations when the the center isn't the origin. All of your videos are very informational and clear, thanks for that.🙂
u saved me thank you
thanks a lot man. going to take some practice. do you know of any where that I can find some practice problems to do
It's hard to know a good practice site because you can get really in depth with this stuff. Deltamath has some good problems, though.
thank you my glorious king
Haha you’re very welcome!
You'll find it when you are not looking 😉. That became my reality today . A week ago, I was looking for a video like this but I couldn't find . Here today I FIND it 🎉. Thank you sir for such great explanation . You've FOUND a new subscriber ❤.
Only video that actually helped thanks!
You’re very welcome!
Great work, Sir! ❤
Thank you! I am in kinematics and forgot all about this. The refresher is appreciated.
This was so helpful, thank you!
I’m glad it was helpful!!!!
Thank you so much for this video!!
In wich profesion is this useful? (sorry for my english, if I misspeled or something)
This specifically isn’t directly applicable to a profession that I know of, but you’ll need to know this well so that you can learn calculus (which is directly applicable to a LOT of professions)
@@TomTeachesMath oh, thank you!! you responded fast!
This little memory trick really helped my students quickly apply the fact that they knew the triangles were proportional. Love it! Thanks:)
Glad it was helpful! I agree even with a good understanding of the similarity between the triangles it’s easy to mess up the proportions.
Yes, the proof is there. But why the right triangles or their sides "behave" that way?
Thank you this is very helpful and I understand. I do not fully get why it's always n-1 for example when the common difference is 3? So why is it not 84-3 instad of 84-1 (n-1)
This helped the topic click so well in my brain, many many thanks :)
I’m glad it was helpful!
Right right right , thanks alot , this helped me Ps. My ball is burning
THAAAAANNK YOOOOOOOU
You’re welcome :)
mr Kinsey making me watch this bs
thank yo very much keep doing videos like these, very helpful
thanks brotha
thank you this helped a lot!
You’re very welcome!
THANK YOU SO MUCH 🙏🏼🙏🏼🙏🏼
You’re very welcome, Mia!
Great!! 🇲🇦🇲🇦My teacher already told me to memorize it in that way ...thank you