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Quandaries & Queries
Q & Q
descartes rule of signs
One item is filed under this topic.
Cos(x) Cos(2x) Cos(4x)=1/8
From Tan Wang:
How many distinct acute angles x are there for which cosx cos2x cos4x=1/8?
Answered by Chris Fisher Harley Weston and Haragauri Gupta.
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