а) sin0 = 0, cos60 = 1/2
5sin0 + 3cos60 = 3*1/2 = 3/2
б) sin(pi/2) = 1, tg(pi/4) = 1
2sin(pi/2) - 3tg(pi/4) = 2 - 3 = -1.
а) sin0 = 0, cos60 = 1/2
5sin0 + 3cos60 = 3*1/2 = 3/2
б) sin(pi/2) = 1, tg(pi/4) = 1
2sin(pi/2) - 3tg(pi/4) = 2 - 3 = -1.