1+cos120 поделить ** sin120

Question

1+cos120 поделить на sin120

Answer 1

1+cos120/sin120 ;
1+cos(90+30)/sin(90+30) ;
1+(-sin30)/cos30 ;
1-1/2 / √3/2 = 0,5 / √3/2 = 1/√3 = √3/3

Answer 2

= cos120=cos(90+30)=sin30=1/2=0.5