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