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\begin{frame}
  \frametitle{Derivatives of Logarithmic Functions}

  \begin{block}{}
    \begin{malign}
      \frac{d}{dx} (\log_a x) = \frac{1}{x\ln a}
      &&
      \frac{d}{dx} (\ln x) = \frac{1}{x}
    \end{malign}
  \end{block}

  \begin{exampleblock}{}
    Differentiate
    \begin{talign}
      y = \sqrt{\ln x}
    \end{talign}
    \pause
    We have 
    \begin{talign}
      y' = \frac{1}{2\sqrt{\ln x}} \cdot \frac{1}{x}
    \end{talign}
  \end{exampleblock}
  \pause
  \begin{exampleblock}{}
    Differentiate
    \begin{talign}
      y = \log_{10}(2+\sin x)
    \end{talign}
    \pause
    We have 
    \begin{talign}
      y' = \frac{1}{(2+\sin x)\ln 10} \cdot \cos x
    \end{talign}
  \end{exampleblock}
  \vspace{10cm}  
\end{frame}