AP EAMCET · Maths · Circle
The combined equation of the direct common tangents of the circles \(x^2+y^2-2 x-2 y-2=0\) and \(x^2+y^2+4 x+6 y+12=0\), is
- A \(3 x^2+10 x y+3 y^2-4 x+4 y-4=0\)
- B \(75 x^2-9 y^2-80 x y+200 x+500 y-2900=0\)
- C \(9 x^2-16 y^2-18 x+96 y-135=0\)
- D \(15 x^2-24 x y+8 y^2-18 x-8 y-73=0\)
Answer & Solution
Correct Answer
(D) \(15 x^2-24 x y+8 y^2-18 x-8 y-73=0\)
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Detailed explanation
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