DLMF:4.21.E27
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Math Formula Information
Formula: Failed to parse (syntax error): {\displaystyle \sin@{2z}=2\sin@@{z}\cos@@{z}=\frac{2\tan@@{z}}{1+\tan^{2}@@{z}},}
Name: DLMF:4.21.E27
Description:
Data Source
https://lct.wmflabs.org/w/index.php?title=Special:EntityPage/Q1729