TeX Quellcode:

\begin{array}{rcl} f'(x) & = & \cos(h(x)) \cdot h'(x) \\\\& = & \cos(x^{\frac{1}{3}}) \cdot \dfrac{1}{3} x^{-\frac{2}{3}} \\\\& = & \dfrac{1}{3\sqrt[3]{x^2}} \cdot \cos(\sqrt[3]{x}) \end{array}