diff --git a/mr/Ub2/mr2.pdf b/mr/Ub2/mr2.pdf
index 8ea81ac..92e47c2 100644
--- a/mr/Ub2/mr2.pdf
+++ b/mr/Ub2/mr2.pdf
Binary files differ
diff --git a/mr/Ub2/mr2.tex b/mr/Ub2/mr2.tex
index 18e764f..ba86ec4 100644
--- a/mr/Ub2/mr2.tex
+++ b/mr/Ub2/mr2.tex
@@ -127,7 +127,7 @@
             \end{pmatrix}\right)=-\frac{3}{2} l$\\
             $\frac{\partial r}{\partial s_r}=\frac{(s_l+s_r)'(s_r-s_l)-(s_l+s_r)(s_r-s_l)'}{(s_r-s_l)^2}\cdot\frac{l}{2}=\frac{-2s_l}{(s_r-s_l)^2}\cdot\frac{l}{2}\overset{s=\overline{s}}{=}\frac{-4}{l}\cdot\frac{l}{2}=-2$\\
             $\frac{\partial r}{\partial s_l}=\frac{(s_l+s_r)'(s_r-s_l)-(s_l+s_r)(s_r-s_l)'}{(s_r-s_l)^2}\cdot\frac{l}{2}=\frac{2s_r}{(s_r-s_l)^2}\cdot\frac{l}{2}\overset{s=\overline{s}}{=}\frac{2}{l}\cdot\frac{l}{2}=1$\\
-            $\Rightarrow r(\mathbf{s})\approx -\frac{3}{2}-2\left(s_l-2l\right)+\left(s_r-l\right)$
+            $\Rightarrow r(\mathbf{s})\approx -\frac{3}{2}l-2\left(s_r-l\right)+\left(s_l-2l\right)=-\frac{3}{2}l-2s_r+s_l$
         \end{enumerate}
      \Aufgabe{}{6}
         \begin{enumerate}[(a)]