Published by:
CGP EDU Academic Team
Published on: August 14, 2026
Line 
cuts circle 
in P and Q and the line 
cuts the circle 
in R and S . If the four points P , Q , R and S are con-cyclic, then 
=
Text Solution
Verified by ExpertsThe correct answer is:
B
Equation of circle through P and Q is
…..(i)
and equation of circle through R and S is
…..(ii)
As P , Q , R and S are concyclic, (i) and (ii) should represent the same circle.
∴ ∴ 
⇒ ⇒ 
Eliminating λ λ , μ μ , we have
⇒ ⇒ 
.
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