diff --git a/Rapport.ipynb b/Rapport.ipynb
index e2a8badfcd094ef8560ce5e8a9edd5ef956d83f7..14626d37488ebc9703860e483b7d4f0ef226ebc6 100644
--- a/Rapport.ipynb
+++ b/Rapport.ipynb
@@ -473,13 +473,13 @@
     "\n",
     "### 1\n",
     "\n",
-    "$```\n",
-    "\\sigma(x)=\\frac{1}{1+e^{-x}}\n",
-    "\\Rightrrow \\sigma'(x)=\\frac{-e^{-x}}{-(1+e^{-x})^2}\n",
-    "\\Rightarrow \\sigma'(x)=\\frac{1}{1+e^{-x}}(\\frac{1+e^{-x}-1}{1+e^{-x}})\n",
-    "\\Rightarrow \\sigma'(x)=\\sigma(\\frac{1+e^{-x}}{1+e^{-x}}-\\frac{1}{1+e^{-x}})\n",
+    "$\n",
+    "\\sigma(x)=\\frac{1}{1+e^{-x}}\\\\\n",
+    "\\Rightarrow \\sigma'(x)=\\frac{-e^{-x}}{-(1+e^{-x})^2}\\\\\n",
+    "\\Rightarrow \\sigma'(x)=\\frac{1}{1+e^{-x}}(\\frac{1+e^{-x}-1}{1+e^{-x}})\\\\\n",
+    "\\Rightarrow \\sigma'(x)=\\sigma(\\frac{1+e^{-x}}{1+e^{-x}}-\\frac{1}{1+e^{-x}})\\\\\n",
     "\\Rightarrow \\sigma'(x)=\\sigma(1-\\sigma)\n",
-    "```$\n",
+    "$\n",
     "\n",
     "### 2\n",
     "\n",