Circle And System Of Circles Question 199
Question: The polars drawn from (-1, 2) to the circles $ S_1\equiv x^{2}+y^{2}+6y+7=0 $ and $ S_2\equiv x^{2}+y^{2}+6x+1=0 $ , are
[RPET 2002]
Options:
A) Parallel
B) Equal
C) Perpendicular
D) Intersect at a point
Show Answer
Answer:
Correct Answer: D
Solution:
The equation of polar to circle (i) is $ x-5y+13=0 $ and equation of polar to circle (ii) is $ x+y-1=0 $ Clearly, polars intersect at a point.
BETA
