\begin{frame} \frametitle{Inverse Trigonometric: Cancellation Equations} The cancellation equations are: \begin{block}{} \begin{talign} \arcsin(\sin x) &= x \quad \text{for $-\frac{\pi}{2} \le x \le \frac{\pi}{2}$} \\ \sin(\arcsin x) &= x \quad \text{for $-1 \le x \le 1$} \end{talign} \end{block} \pause\medskip \begin{block}{} \begin{talign} \arccos(\cos x) &= x \quad \text{for $0 \le x \le \pi$} \\ \cos(\arccos x) &= x \quad \text{for $-1 \le x \le 1$} \end{talign} \end{block} \end{frame}