deletions | additions       diff --git a/Soluci_n_begin_aligned_cos__.tex b/Soluci_n_begin_aligned_cos__.tex  index 6d35726..a14b39b 100644  --- a/Soluci_n_begin_aligned_cos__.tex  +++ b/Soluci_n_begin_aligned_cos__.tex 
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−10\mathrm{i}\cos^2\theta\sin^3\theta  +5\cos \theta\sin^4 \theta  +\mathrm{i}\sin^5\theta) = \\  & = \mathrm{Re}(\cos^5 \cos^5  \theta−10\cos^3 \theta\sin^2 \theta+5\cos \theta\sin^4 \theta) \theta = \\  & = \cos^5 \theta−10\cos^3 \theta(1-\cos^2\theta)+5\cos \theta(1-\cos^\theta)^2  = \\ \end{aligned}  \]