deletions | additions       diff --git a/b_Deduzca_que_cos_frac__.tex b/b_Deduzca_que_cos_frac__.tex  index 138161c..a4364b5 100644  --- a/b_Deduzca_que_cos_frac__.tex  +++ b/b_Deduzca_que_cos_frac__.tex 
...
(b) \textbf{(b)}  Deduzca que $\cos\frac{\pi}{5}$ es raíz del polinomio $P(x)=16x^5-20x^3+5x+1$