In this video I demonstrate in purely geometrical terms how to draw a perpendicular line going through the hypotenuse of a right angled triangle.
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https://www.youtube.com/watch?v=mFLHfWbnj3Y
In this video I demonstrate why, when x≡a(modm) and y≡b(modm) this means that xy≡(ab)(modm).
The proof found in this video is related to the work in Further Pure Mathematics 2, Pearson, Page 12 and How To Think About Abstract Algebra, Lara Alcock, Page 44.
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If you have any questions, feel free to post them into the comments section and I'll get back to you as soon as I can. :-)
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https://www.youtube.com/watch?v=_ud0h3R_8dQ
How to find the derivative of y=cotx using implicit differentiation
Video by: Tiago Hands (https://www.instagram.com/tiago_hands/)
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https://www.youtube.com/watch?v=Q6ZGFMbq1_w
In this video I show you how to find the line that cuts through the intersection points of two circles using geometry and algebra. With this line, you can then find the intersection points of two circles, which I'll be demonstrating how to do in my next Youtube video.
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https://www.youtube.com/watch?v=FjkWy5VTCgE
The amazing shadows and perspectives of a 3D Lissajous Curve. Made on https://www.geogebra.org/3d?lang=en.
Graph by: https://www.twitter.com/tiago_hands
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https://www.youtube.com/watch?v=8bGM2d6Rcao
A bit of poetry in motion... The coiled torus, animated. Made on Geogebra.
Graph by: https://www.twitter.com/tiago_hands
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https://www.youtube.com/watch?v=SQgYH9DjUxg