deletions | additions       diff --git a/layout.md b/layout.md  index cbe4ae9..cbc63dd 100644  --- a/layout.md  +++ b/layout.md 
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Soluci_n_begin_aligned_cos__.md  b_Deduzca_que_cos_frac__.tex  Soluci_n_Tenemos_que_demostrar__.md  c_Factorice_el_polinomio_P__.tex