diff --git a/analyse_1_td_1.tex b/analyse_1_td_1.tex
index 91b0e36..d7adb95 100644
--- a/analyse_1_td_1.tex
+++ b/analyse_1_td_1.tex
@@ -112,22 +112,22 @@
     \begin{align}
                   & b-a=3\land 2a+b=2 \nonumber \\
         \iff\quad & 3a=-1\land 3b=8 \nonumber \\
-        \iff\quad & a=-\frac{1}{3}\land b=\frac{8}{3} \nonumber \\
+        \iff\quad & a=-\frac{1}{3}\land b=\frac{8}{3} \nonumber
     \end{align}
     \begin{align}
                   & b-a=3\land 2a+b=-2 \nonumber \\
         \iff\quad & 3a=-5\land 3b=4 \nonumber \\
-        \iff\quad & a=-\frac{5}{3}\land b=\frac{4}{3} \nonumber \\
+        \iff\quad & a=-\frac{5}{3}\land b=\frac{4}{3} \nonumber
     \end{align}
     \begin{align}
                   & b-a=-3\land 2a+b=2 \nonumber \\
         \iff\quad & 3a=5\land 3b=-4 \nonumber \\
-        \iff\quad & a=\frac{5}{3}\land b=-\frac{4}{3} \nonumber \\
+        \iff\quad & a=\frac{5}{3}\land b=-\frac{4}{3} \nonumber
     \end{align}
     \begin{align}
                   & b-a=-3\land 2a+b=-2 \nonumber \\
         \iff\quad & 3a=1\land 3b=-8 \nonumber \\
-        \iff\quad & a=\frac{1}{3}\land b=-\frac{8}{3} \nonumber \\
+        \iff\quad & a=\frac{1}{3}\land b=-\frac{8}{3} \nonumber
     \end{align}
 
     Donc
diff --git a/pdf/analyse_1_td_1.pdf b/pdf/analyse_1_td_1.pdf
index c1f77f5..55ee00f 100644
Binary files a/pdf/analyse_1_td_1.pdf and b/pdf/analyse_1_td_1.pdf differ