Cos(π/4) = √2 / 2 ≈ 0.707Cos(5π/7) ≈ -0.376Cos(9π/5) ≈ -0.809Cos(3π/8) ≈ 0.924
Порядок возрастания: Cos(5π/7) < Cos(π/4) < Cos(9π/5) < Cos(3π/8)
Cos(π/4) = √2 / 2 ≈ 0.707
Cos(5π/7) ≈ -0.376
Cos(9π/5) ≈ -0.809
Cos(3π/8) ≈ 0.924
Порядок возрастания: Cos(5π/7) < Cos(π/4) < Cos(9π/5) < Cos(3π/8)