Learn how to come up with the Cosine Rule from scratch.
Video by: Tiago Hands (https://www.instagram.com/tiago_hands/)
Instagram Resources:
Mathematics Proofs (Instagram): https://www.instagram.com/mathematics.proofs/
Scientific Quotes (Instagram): https://www.instagram.com/scientific.quotes/
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https://www.youtube.com/watch?v=juKCiJBB03E
In this video I prove to you with a synthesis of pure geometry and algebra, plus Pythagoras' theorem that the area of an equilateral triangle is exactly (1/4)*a^2*√3 as can be seen when you Google search.
I hope you enjoy this video, and if you like my work, follow me on Instagram:
https://www.instagram.com/tiago_hands/
I also have a mathematics proofs page on Instagram as well:
https://www.instagram.com/mathematics.proofs/
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https://www.youtube.com/watch?v=E7KJPwq6O9w
What you *need* in order to follow this video series:
1. Algebraic skills {http://mathsvideos.net/useful-algebraic-formulas/}
You need to know that: √(ab) = √a√b
2. Trigonometry skills:
- Unit circle {https://scontent-lhr3-1.xx.fbcdn.net/v/t31.0-8/14324643_627264727441617_168387912534466908_o.jpg?oh=ea3f9cec2389ced6eaa76830057e7d85&oe=58FE04F9}
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https://www.youtube.com/watch?v=1JdE9ngJE4A
How to differentiate y=ln(sinx), Chain Rule version
Video by: Tiago Hands (https://www.instagram.com/tiago_hands/)
Extra Instagram Resources:
Mathematics Proofs (Instagram): https://www.instagram.com/mathematics.proofs/
Scientific Quotes (Instagram): https://www.instagram.com/scientific.quotes/
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https://www.youtube.com/watch?v=yky8zhUd-6o
Differentiate x^x using implicit differentiation and the product rule
To find out how to differentiate x * ln(x), please watch this video:
https://www.youtube.com/watch?v=0HU84x8gevs
Video by: Tiago Hands (https://www.instagram.com/tiago_hands/)
Extra Instagram Resources:
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https://www.youtube.com/watch?v=552AvpVk_Qs
This video contains a visual proof that demonstrates why 1-(1/3)+(1/9)-(1/27)+(1/81)-(1/243)-...=3/4. It can be found on page 406 of the book 'Real Analysis: A Long-Form Mathematics Textbook (2nd Edition)' by Professor Jay Cummings. As an added bonus, there is a short clip (23 iterations) where you can zoom into the final image of Jay's proof. The art was created by Tiago Hands.
You can purchase Jay's remarkable book on Amazon via: https://amzn.to/2Y5tLHR
To find out more about Real Analysis: A Long-Form Mathematics Textbook (2nd Edition), go to: https://longformmath.com/analysis-home
Jay's official Twitter account is: https://twitter.com/LongFormMath
For more mathematics proofs, visit: https://www.instagram.com/mathematics.proofs
You can follow Tiago on Twitter at: https://www.twitter.com/tiago_hands
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https://www.youtube.com/watch?v=AmnDAnPcXZM
What you *need* in order to follow this video series:
1. Algebraic skills {http://mathsvideos.net/useful-algebraic-formulas/}
You need to know that: √(ab) = √a√b
2. Trigonometry skills:
- Unit circle {https://scontent-lhr3-1.xx.fbcdn.net/v/t31.0-8/14324643_627264727441617_168387912534466908_o.jpg?oh=ea3f9cec2389ced6eaa76830057e7d85&oe=58FE04F9}
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https://www.youtube.com/watch?v=BFJOpUt9i6U
Desmos Art: Cube Ripples, 4sin(0.5*√(x²+y²)-t)
This video was created by:
https://www.twitter.com/tiago_hands
For more mathematics content, check out:
https://www.threads.net/@mathematics.proofs
https://www.instagram.com/mathematics.proofs
Thanks for watching this video and make sure you have subscribed if you want to see more videos like this!
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https://www.youtube.com/watch?v=rZvfTuZ5tFs