Category:Half Angle Formula for Tangent
Jump to navigation
Jump to search
This category contains pages concerning Half Angle Formula for Tangent:
| \(\ds \tan \frac \theta 2\) | \(=\) | \(\ds +\sqrt {\dfrac {1 - \cos \theta} {1 + \cos \theta} }\) | for $\dfrac \theta 2$ in quadrant $\text I$ or quadrant $\text {III}$ | |||||||||||
| \(\ds \tan \frac \theta 2\) | \(=\) | \(\ds -\sqrt {\dfrac {1 - \cos \theta} {1 + \cos \theta} }\) | for $\dfrac \theta 2$ in quadrant $\text {II}$ or quadrant $\text {IV}$ |
where $\tan$ denotes tangent and $\cos$ denotes cosine.
When $\theta = \paren {2 k + 1} \pi$, $\tan \dfrac \theta 2$ is undefined.
Pages in category "Half Angle Formula for Tangent"
The following 7 pages are in this category, out of 7 total.