DLMF:4.21.E28
Jump to navigation
Jump to search
Math Formula Information
Formula: Failed to parse (syntax error): {\displaystyle \cos@{2z}=2\cos^{2}@@{z}-1=1-2\sin^{2}@@{z}=\cos^{2}@@{z}-\sin^{2}@@{z}=\frac{1-\tan^{2}@@{z}}{1+\tan^{2}@@{z}},}
Name: DLMF:4.21.E28
Description:
Data Source
https://lct.wmflabs.org/w/index.php?title=Special:EntityPage/Q1730