(D)

(d)

e = 0.7 (slider from 0 to 5, step 0.1)
c: x^(2) + y^(2) = (e^(2) * (x + 1)^(2))
F = Intersect(xAxis, yAxis)
f = Circle(F, 1)
A_1 = Point(f)
b = Line(F, A_1)
g = OrthogonalLine(F, b)
T = Intersect(d, g)
C = Intersect(d, a)
h = AngularBisector(C, T, F)
A = Mirror(F, h)
M = Dilate(A, e / (1 + e), F)
i = Line(M, T)
P = Intersect(i, b)
j = Line(A, F)
M' = Dilate(A, e / (e - 1), F)
k = Line(T, M')
P' = Intersect(b, k)
α = Angle(T, F, P)