# Lars Eighner's Homepage

## LarsWiki

### The Derivative of Coversed Cosine

Do not confuse with versed cosine.

##### Contents

{\begin{align} \operatorname{covercosin}\theta &= 1 + \sin\theta \cr &= \operatorname{vercosin}\left( {\pi \over 2} - \theta \right) \end{align}}

I have not yet found a good geometric representation of this function in relation to the basic trig functions.

{$y=\operatorname{covercosin}(x)$} and {$y=\operatorname{arccovercosin}(x)$}

{\begin{align} \operatorname{covercosin}\theta &= 1 + \sin\theta \cr {d \over {d\theta}}\operatorname{covercosin}\theta &= {d \over {d\theta}}\left( 1 + \sin\theta \right) \cr &= {d \over {d\theta}}1 + {d \over {d\theta}}\sin\theta \cr &= 0 + \cos\theta \cr \therefore \quad {d \over {d\theta}}\operatorname{covercosin}\theta &= \cos\theta \end{align}}

''Sources:'

1. FooPlot: Online graphing calculator and function plotter

Recommended:

Category: Math Calculus Trigonometry

This is a student's notebook. I am not responsible if you copy it for homework, and it turns out to be wrong.

Figures are often enhanced by hand editing; the same results may not be achieved with source sites and source apps.

### March 16, 2018

• HomePage
• WikiSandbox

Lars

Contact by Snail!

Lars Eighner
APT 1191
8800 N IH 35
AUSTIN TX 78753
USA

Help