j = 7
E = (10, 5.7)
k = Circle(E, j)
O = Intersect(xAxis, yAxis)
a = 6.300000000000001 (slider from 0 to 10, step 0.1)
c = Circle(O, a)
T = Point(k)
b = Polar(T, c)
d = Ray(O, T)
T' = Intersect(b, d)
A = Intersect(c, b, 1)
B = Intersect(c, b, 2)
e, f = Tangent(T, c)
g, h = Tangent(T', c)
C = Intersect(c, h, 1)
D = Intersect(c, g, 1)
i = Polar(T', c)
loc1 = Locus(T', T)