deletions | additions       diff --git a/Soluci_n_begin_aligned_cos__.tex b/Soluci_n_begin_aligned_cos__.tex  index fc91eda..5fcb07d 100644  --- a/Soluci_n_begin_aligned_cos__.tex  +++ b/Soluci_n_begin_aligned_cos__.tex 
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& = \cos^5 \theta−10\cos^3 \theta\sin^2 \theta+5\cos \theta\sin^4 \theta = \\  & = \cos^5 \theta−10\cos^3 \theta(1-\cos^2\theta)+5\cos \theta(1-\cos^2\theta)^2 = \\  & = \cos^5 \theta−10\cos^3 \theta-10\cos^5\theta+5\cos \theta(1-2\cos^2\theta+4\cos^4\theta) = \\  & = \cos^5 \theta−10\cos^3 \theta-10\cos^5\theta+5\cos \theta-10\cos^3\theta+20\cos^5\theta = \\  \end{aligned}  \]