Calculation of Derivative.

Keyword Derivative,Trigonometric function,Inverse trigonometric functions,Cosecant curve.

Reference [1]：オーム社編：『機械工学公式集』,オーム社,pp.20,1960.

Remarks ・LaTeX： \frac{d}{dx}\textup{cosec}^{-1}x=-\frac{1}{x\sqrt{x^{2}-1}} \; ,\textup{cesec}\, x=\frac{1}{\sin x}\; ,\\\textup{cosec} ^{-1}\left ( \frac{h}{y}\right )=\frac{\pi }{2}-\cos^{-1}\left ( \frac{y}{h}\right )=\frac{\pi }{2}-\textup{sec}^{-1}\left ( \frac{h}{x} \right ) ・Making above Equation Image is powered by CODECOGS

History ・2010/02/25：Upload.