Question

Помогите решить:
Cos720+sin810-tg600

Answer 1

cos 720° = cos(2*360°+0°) = cos 0° = 1
sin 810° = sin(2*360°+90°) = sin 90° = 1
tg 600° = tg(3*180°+60°) = tg 60° = √3

cos720°+sin810°-tg600° = 1+1-√3 = 2-√3