Помните 2 пожалуйста срочно
Task/26656045 ------------------- 1) а) 40° =(40/180)*π = 2π/9 рад. б) 3π/4 =3*180°/4 = 135°. ------------------------------- 2) а) ctg(π/6) * tg44°* ctg90° =0 , .т.к ctg90° =0. б) 2sin(π/6) / (1 +2cos60°) =2*(1/2) / (1 +2*1/2) = 1/ (1 +1) =1/2.