1)tg(х – π/3)  =  √3

 

2)Визначте три рівняння, які не мають розв’язків.

А) 0,2сtg(2х + π/3) =1;

Б) 0,2соs(2х - π/3) = - 1;

В) 2sin(0,5х – π/6) = - 2;

Г) sin2х + 2cоs2х = 0;

Д) х2 = sin4;                                       

Е) sinх + 2cоsх = 0;

 

3)аrctg(соs( - π))=?

4)аrcсtg(sin( - π/2))=?

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