arcsin(-1) + arccos 1 + arctg(- корень_с_3/3) + arcctg(- корень_с_3). Created by winzux. algebra-ru

3) + arcctg(- корень_с

winzux @winzux

August 2021 1 27 Report

arcsin(-1) + arccos 1 + arctg(- корень_с_3/3) + arcctg(- корень_с_3)

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$arcsin(-1)+arccos 1+arctg(-\frac{\sqrt3}{3})+arcctg(-\sqrt3)=\\\\=-arcsin1+0-arctg\frac{\sqrt3}{3}-arcctg\sqrt3=\\\\=-\frac{\pi}{2}-\frac{\pi}{6}-\frac{\pi}{6}=\frac{\pi}{2}-\frac{\pi}{3}=\frac{\pi}{6}$

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