a = 0 (slider from 0 to 5, step 1)
A_{1} = (10.58, -10.34)
B = (23.68, -4.56)
f = Line(A_{1}, B)
S_1 = (13.8, -4.62)
D = (18.12, -10.2)
k_1 = Circle(S_1, D)
A = (14.408823625592696, -0.838809851757973)
C = (9.82, -1.42)
ω = Circle(A, C)
c = Mirror(k_1, ω)
f' = Mirror(f, ω)
g, h = Tangent(c, f')
Intersect(0.9756783279328789x² + 0.7652379228423819x y - 5.019210736619174y² - 26.111623022663423x - 57.16405973599977y = -98.40643490006482, c)
k_2 = Mirror(h, ω)
k_3 = Mirror(g, ω)
S_2 = Center(k_2)
S_3 = Center(k_3)