Question

Упростить выражение: 1/2cost - sin(π/6+t)

Answer 1

(1/2)*cost - sin(π/6 + t) = (1/2)*cost - sin(π/6)*cost - cos(π/6)*sint = 
= (1/2)*cost - (1/2)*cost - cos(π/6)*sint = - (√3/2)*sint