а) t = π/6sin(π/6) = 1/2cos(π/6) = √3/2
б) t = π/2sin(π/2) = 1cos(π/2) = 0
в) t = 5π/4sin(5π/4) = -√2/2cos(5π/4) = -√2/2
г) t = -π/3sin(-π/3) = -√3/2cos(-π/3) = 1/2
а) t = π/6
sin(π/6) = 1/2
cos(π/6) = √3/2
б) t = π/2
sin(π/2) = 1
cos(π/2) = 0
в) t = 5π/4
sin(5π/4) = -√2/2
cos(5π/4) = -√2/2
г) t = -π/3
sin(-π/3) = -√3/2
cos(-π/3) = 1/2