ctg(2x/3)>√3/3 Даю 50 БАЛЛОВ. Created by bogdangladkikh05. algebra-ru

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bogdangladkikh05 @bogdangladkikh05

September 2021 2 21 Report

ctg(2x/3)>√3/3
Даю 50 БАЛЛОВ

Miroslava227

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Ответ:

$ctg( \frac{2x}{3} ) > \frac{ \sqrt{3} }{3} \\$

рисунок

$\frac{2x}{3} \in(\pi \: n ;\frac{\pi}{3} + \pi \: n) \: \: \: | \times \frac{3}{2} \\ x\in( \frac{3\pi \: n}{2} ; \frac{\pi}{2} + \frac{3\pi \: n}{2} ) \\ n\in \: Z$

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Universalka

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$Ctg(\frac{2x}{3})>\frac{\sqrt{3} }{3}\\\\\pi n$

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