Habe ich richtig abgeleitet und umgeformt?
\(\begin{array}{c}U(K, T)=K^{\frac{2}{3}} * T^{\frac{1}{3}} \\\\ G R S=\Large \frac{\frac{\partial U(K, T)}{\partial K}}{\frac{\partial U(K, T)}{\partial T}}=\frac{\frac{2}{3} * K^{-\frac{1}{3}} * T^{\frac{1}{3}}}{\frac{1}{3} * T^{-\frac{2}{3}} * K^{\frac{2}{3}}}=\frac{2 K}{T}\end{array} \)