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\begin{frame}
  \frametitle{Differentiation Rules: Quotient Rule}

  \begin{block}{Quotient Rule}
    If $f$ and $g$ are both differentiable, then
    \begin{talign}
      \frac{d}{dx} \left[\frac{f(x)}{g(x)}\right] \;=\; \frac{ g(x) \cdot \frac{d}{dx}( f(x) ) - f(x) \cdot \frac{d}{dx}( g(x) ) }{[g(x)]^2}
    \end{talign}
  \end{block}  
  \pause\medskip
  
  In different notation
  \begin{block}{}
    \begin{malign}
      \left(\frac{f}{g}\right)'(x) \;=\; \frac{g(x) \cdot f'(x) - f(x) \cdot g'(x)}{g(x)^2}
    \end{malign}
  \end{block}
  \pause\medskip
  
  In words:
  \begin{itemize}
    \item [] The derivative of a quotient is the denominator times the derivative of the numerator
      minus the numerator times the derivative of the denominator, all divided by the square of the denominator.
  \end{itemize}
\end{frame}