Question: tangents are drawn from any point on the hyperbola?
Answer: Tangents are drawn from any point on the hyperbola 9x2−4y2 =1 to the circle x2+y2=9 Find the locus of midpoint of the chord of contact. 9x2−4y2=1 to the circle x2+y2=9 =1 is (3secθ,2tanθ). Let (x1,y1) be the mid-point of the chord of contact.