diff --git a/exercise/main.tex b/exercise/main.tex
index 09b7352..d1418e6 100644
--- a/exercise/main.tex
+++ b/exercise/main.tex
@@ -1,7 +1,7 @@
 \documentclass[solution]{../course_template/exerciseClass}
 \title{Power Electronics}
 
-\includeonly{tex/exercise05}
+\includeonly{tex/exercise07}
 
 \begin{document}
     \include{tex/exercise01}
diff --git a/exercise/tex/exercise07.tex b/exercise/tex/exercise07.tex
index 14c9c22..90dbd5d 100644
--- a/exercise/tex/exercise07.tex
+++ b/exercise/tex/exercise07.tex
@@ -410,7 +410,7 @@
     The amplitudes are depicted in \autoref{sfig:NormalizationToTheAmplitude}.
     \input{fig/ex07/sFig_standardization_to_fudamental_freq.tex}
     \FloatBarrier
-    The relation between fundamental und harmonic amplitude is calculated by
+    The relation between fundamental and harmonic amplitude is calculated by
     \begin{equation}
         \begin{split}        
             \frac{\hat{u}_\mathrm{2a0,1}}{\hat{u}_\mathrm{2a0,k}} &= \frac{1}{k} \\
@@ -456,7 +456,6 @@
     Using the result for $\beta$ leads to
     \begin{equation}
         \gamma=\SI{180}{\degree}-\alpha-\beta = \SI{180}{\degree}-\SI{120}{\degree}-\SI{56.1}{\degree}= \SI{3.9}{\degree}.
-        \label{eq:Ex07T2_sin_beta}
     \end{equation}
     In \autoref{sfig:IllustrationForUsingSineTheorem} the triangle is depicted.
     \input{fig/ex07/sFig_ trigonometric_approach_triangle.tex}