a = 0 (slider from 0 to 12)
f(x) = sin(x)
b(x, y) = y ≤ f(x)
A: (a, f(a))
g = Tangent(A, f)
c = Circle(A, 1)
B = Intersect(c, g, 1)
C = Intersect(c, g, 2)
D: B
E: C
надпись1 = LaTeX(a, true, true)