fix some typos

2020-01-15 11:50:54 +01:00
parent 27c2f60829
commit 568dd6f750
3 changed files with 2 additions and 2 deletions
@@ -166,7 +166,7 @@
        \item $\sin x - \sin y = 2 \cos\left( \frac{x+y}{2} \right)
            \cdot \sin\left( \frac{x - y}{2} \right) $ \\
            $\cos x - \cos y = - 2 \cdot \sin \left( \frac{x+y}{2} \right) \cdot 
-            \sin \left( \frac{x - \frac{y}{2}}{} \right)$
+            \sin \left( \frac{x - y}{2} \right)$
    \end{enumerate} 
 \end{satz}