Угол 30°
sin30° = 1/2;
cos30° = √3/2;
tg30° = √3/3.
Угол 45°
sin45° = √2/2;
cos45° = √2/2;
tg45° = 1.
Угол 60°
sin60° = √3/2;
cos60° = 1/2;
tg60° = √3.
