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Cos Pi
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1:58
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The Math Sorcerer
Compute cos(pi/4)
We compute the cosine of pi/4 by hand without using a calculator. I hope this helps someone who is learning trigonometry. Useful Math Supplies https://amzn.to/3Y5TGcv My Recording Gear https://amzn.to/3BFvcxp (these are my affiliate links) ***********Math, Physics, and Computer Science Books*********** Epic Math Book List https://amzn.to ...
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