TeX Quellcode:

\begin{array}{ccl} 13\dfrac{\sqrt{4m-1}}{\left(4m-1\right)^{-0{,}5}} &=& 13\left(4m-1\right)^{\frac{1}{2}}\left(4m-1\right)^{-\left(-\frac{1}{2}\right)} \cr\cr &=& 13 \left(4m-1\right)^{\frac{1}{2}+\frac{1}{2}} \cr\cr &=& 13\left(4m-1\right)^1 \cr\cr &=& 52m-13 \end{array}