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	Cliff Pickover ⁦‪@pickover‬⁩ Mathematics. Why circles, right-angle triangles, angles, sin, and cos, are all related. bit.ly/2AxoWWp pic.twitter.com/T3rrxGA4xI   2023/01/22 9:44

https://twitter.com/pickover/status/1616960047690424321?s=61&t=qRYRwAStIoYf-dr7xzW9Gg