S_1 = (1.7536, 2.3022)
B = (3.04, 4.28)
k_1 = Circle(S_1, B)
S_2 = (7.68, 1.98)
D = (3.44, 2.22)
k_2 = Circle(S_2, D)
A = (2.3618, -1.594)
a = 0 (slider from 0 to 5, step 1)
C = (5.4804, 0.3904)
ω = Circle(A, C)
c = Mirror(k_1, ω)
d = Mirror(k_2, ω)
f, g = Tangent(c, d)
Intersect(-1.5043851410991422x² + 4.032145091420148x y - 0.6229726182539237y² + 2.620778292542255x - 12.048679504255105y = -13.093371785494426, c)
k_3 = Mirror(g, ω)
k_4 = Mirror(f, ω)
S_3 = Center(k_3)
S_4 = Center(k_4)