diff --git a/00.brainstorming-pedagogical-teams/45.synthesis-structuring/10.math-tools/30.n3/10.brainstorming/01.p1/textbook.es.md b/00.brainstorming-pedagogical-teams/45.synthesis-structuring/10.math-tools/30.n3/10.brainstorming/01.p1/textbook.es.md
index 8171dde19..1bab25236 100644
--- a/00.brainstorming-pedagogical-teams/45.synthesis-structuring/10.math-tools/30.n3/10.brainstorming/01.p1/textbook.es.md
+++ b/00.brainstorming-pedagogical-teams/45.synthesis-structuring/10.math-tools/30.n3/10.brainstorming/01.p1/textbook.es.md
@@ -56,9 +56,7 @@ Las *herramientas matemáticas de los niveles 1 y 2* **$`+`$** :
   <br>    
   y unciones hiperbólicas    
   **$`\cosh(x)=\dfrac{e^x-+e^{\,- x}}{2}`$**   
-  **$`\sinh(x)=\dfrac{e^x-e^{\,- x}}{2}`$** 
-  **$`\cosh(x)=\dfrac{e^x-+e^{\,- x}}{2}`$**   
-  **$`\sinh(x)=\dfrac{e^x-e^{\,- x}}{2}`$**
+  **$`\sinh(x)=\dfrac{e^x-e^{\,- x}}{2}`$**    
 
 * **$`e^0=1 \quad , \quad`$**
 **$`e^{\,i\frac{\pi}{2}}=i\quad , \quad`$**