Tangent 75 and tangent of 15 (visual proof; trigonometry)

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This is a short, animated visual proof of the showing how to find the tangent of 75 and the tangent of 15 without using the half-angle identities for the tangent function. The idea is to embed some interesting triangles into a 2x4 rectangle. #mathshorts #mathvideo #math #trigonometry #triangle #manim #animation #theorem #pww #proofwithoutwords #visualproof #proof #circle #tangent #righttriangles #rectangle #identity #halfangle #trigidentity #trig

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Can you make a video of equiangular/logarithmic spiral that the angle made by line joining centre and a point on it with tangent at that point has a angle constant for any point :)

pardeepgarg
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How long does it take for you to make your videos each roughly?

curtistackie