August 2021 1 22 Report

Решить систему неравенств:

ctg(x)< - корень(3)/3

sin(x)>-0.8

 

 

 

 

 

 

 

 

 

Ответ: arcsin(-0.8)+2pik<x<2pik;   2pi/3+2pik<x<pi+2pik

 

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