1) sin (π/2 + α) = cos α = 22) ctg (360 - α) = cot (360 - α) = 33) sin (2π + α) = sin 4) tg (3π/2 - α) = tan (3π/2 - α5) sin (270 - α) = -cos α
1) sin (π/2 + α) = cos α = 2
2) ctg (360 - α) = cot (360 - α) = 3
3) sin (2π + α) = sin
4) tg (3π/2 - α) = tan (3π/2 - α
5) sin (270 - α) = -cos α