AP EAMCET · Maths · Circle
The equation of the pair of lines joining the origin to the points of intersection of two circles \(x^2+y^2-4 x+8 y+5=0\) and \(x^2+y^2+2 x+4 y-3=0\) is
- A \(13 x^2+6 x y-28 y^2=0\)
- B \(x y-28 y^2=0\)
- C \((x+4)(x-5)=0\)
- D \(13 x^2+68 x y-28 y^2=0\)
Answer & Solution
Correct Answer
(D) \(13 x^2+68 x y-28 y^2=0\)
Step-by-step Solution
Detailed explanation
Then, equation of common chord in given by…
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