Circles C1 and C2 intersect at points A and B. Points P1 and Q1 on circle C1 and points P2 and Q2 on circle C2 are such that P1P2 and Q1Q2 are common tangents to circles C1 and C2. Ray Q1B is parallel to P1P2 and intersects circle C2 again at point R2.
What is the value of |BR2|/|BQ1|? Prove it.