Published by:
CGP EDU Academic Team
Published on: August 14, 2026
From a point P (3,3) on the circle x 2 + y 2 = 18, two chords PQ and PR each of 2 units length are drawn on this circle. The value of cos ( 
QPR) is equal to
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
B
Let angle OPR = 
then in 
OPR,
Now, 
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