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sin(2u)
2sin(u) * cos(u)
cos(2u)
cos²(2u) - sin²(2u)
2cos²(u) - 1
1 - 2sin²(u)
tan(2u)
2tan(u) / (1 - tan²(u))
sin(u/2)
± sqrt((1 - cos(u) / 2)
cos(u/2)
±sqrt[(1 + cos(u)) / 2]
tan(u/2)
(1 - cos(u)) / sin(u)
sin(u) / (1 + cos(u))
sin(u ± v)
cos(u ± v)
tan(u ± v)
sin²(u)
cos²(u)
tan²(u)
![<p>±sqrt[(1 + cos(u)) / 2]</p>](https://knowt-user-attachments.s3.amazonaws.com/f347ba95-2b0e-466e-b09a-fba9f5ea6d8d.png)
