συνχ

5π/4

π/4

-3π/4

-7π/4

a = -3.94 (slider from -6.24 to 6.24, step 0.1)
b = 6.24 (slider from -5 to 6.24, step 0.1)
ημχ = Function(sin(x), a, b)
συνχ = Function(cos(x), a, b)
c = true
A = Intersect(ημχ, συνχ, (3.9269908169872414, -0.7071067811865475))
B = Intersect(συνχ, ημχ, (-2.3561944901835408, -0.707106781180322))
C = Intersect(ημχ, συνχ, (0.7853981653291613, 0.7071067825524748))
D = Intersect(συνχ, ημχ, (-5.497787143782138, 0.7071067811865474))