deletions | additions       diff --git a/Soluci_n_begin_aligned_cos__.tex b/Soluci_n_begin_aligned_cos__.tex  index a14b39b..adb33c8 100644  --- a/Soluci_n_begin_aligned_cos__.tex  +++ b/Soluci_n_begin_aligned_cos__.tex 
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+5\cos \theta\sin^4 \theta  +\mathrm{i}\sin^5\theta) = \\  & = \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^\theta)^2 \theta(1-\cos^2\theta)^2  = \\ \end{aligned}  \]