Circle And System Of Circles Question 225
Question: The equation of line passing through the points of intersection of the circles $ 3x^{2}+3y^{2}-2x+12y-9=0 $ and $ x^{2}+y^{2}+6x+2y-15=0 $ , is
[IIT 1986; UPSEAT 1999]
Options:
A) $ 10x-3y-18=0 $
B) $ 10x+3y-18=0 $
C) $ 10x+3y+18=0 $
D) None of these
Show Answer
Answer:
Correct Answer: A
Solution:
Common chord $ =S_1-S_2 $
$ 10x-3y-18=0 $ .
BETA
