In this video I demonstrate an alternative way to show that: cos(θ-Φ)=cosθcosΦ+sinθsinΦ
For the distance formula derivation, simply visit: https://youtu.be/0Gkv_hauvy4?si=bsC-DPZtUhlrHqYl
If you'd like to purchase the book Fundamentals of University Mathematics, 3rd Edition, by Colin McGregor, Jonathan Nimmo and Wilson Stothers, visit my Amazon affiliate link:
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Thanks for watching and see you next time!!
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https://www.youtube.com/watch?v=epIbQbWYLjk
In the limit, as change in x approaches 0, (tan(?x))/?x=1, tan(?x)=0.
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=IhvRxbW_58g
In this video I demonstrate how you can find the percentages of values in column relative to a specific value (Open Office 4). This video may be useful to bookkeepers, accountants, scientists, engineers and mathematicians.
If you like this video do not forget to subscribe to my Youtube channel. You can also follow me at: https://www.instagram.com/tiago_hands
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https://www.youtube.com/watch?v=dMwh4DQ5wQ8
These are some new graphs I managed to make on Desmos in December 2020.
0:00 :: The graph of r=aθ
0:26 :: The graph of r=asinθ
0:41 :: Animated graph of y=tan(x)
0:56 :: Lissajous Curve
1:21 :: Ellipse formation
2:17 :: Cardioid formation
3:09 :: T(2,3) Torus Knot (Illusion)
If you like this work and want to see more of my maths stuff, visit:
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https://www.youtube.com/watch?v=pLpcA2JLYFg
The Helix Optical Illusion :: A 3D Looking 2D Graph
Created on Desmos.
By Tiago Hands: https://www.instagram.com/tiago_hands
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https://www.youtube.com/watch?v=tU2jPsuLbAg
In this video I demonstrate how to create a basic animated graph on Desmos.com. I use y=sinx for my example and also the variable 't'.
For more mathematics videos like this, make sure you've subscribed to this channel.
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https://www.youtube.com/watch?v=TumAAzz2tEM
Learn how to derive the area of an ellipse from scratch.
This is what you must know, including the skills that are required to follow this video series carefully:
1. Algebraic skills [Example: √(a*b)=√a√b]
Link: http://mathsvideos.net/useful-algebraic-formulas/
2. Trigonometry skills
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https://www.youtube.com/watch?v=ECXUXVqp4Rg
Visual #Mathematics (Circle Theorem): The Inner #Radius of a Right Angled #Triangle, Animation #visualmath
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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=_tR1XWhQBgk