TeX Quellcode:

\begin{array}{ccl} \left( \dfrac{1}{x^2} \cdot x^{-2} \right)^2 \cdot \sqrt[2]{x} &=& \left( x^{-2} \cdot x^{-2} \right)^2 \cdot x^{\frac{1}{2}} \cr &=& \left( x^{-2-2} \right)^2 \cdot x^{\frac{1}{2}} \cr &=& x^{-4 \cdot 2} \cdot x^{\frac{1}{2}} \cr &=& x^{-8+\frac{1}{2}} \cr &=& x^{-\frac{15}{2}} \cr\cr &=& \dfrac{1}{\sqrt{x^{15}}} \cr\cr &=& \dfrac{1}{x^7 \cdot \sqrt{x}} \cr\cr &=& \dfrac{\sqrt{x}}{x^8} \end{array}