If x=9 is the chord of contact of the hyperbola x^ 2 -y^ 2 =9 , then the equation of the…
Mathematics · JEE Main · NTA Exams — Co-ordinate Geometry
If \(x=9\) is the chord of contact of the hyperbola \(x^{2}-y^{2}=9\), then the equation of the corresponding pair of tangent is
- \(9 x^{2}-8 y^{2}+18 x-9=0\)
- \(9 x^{2}-8 y^{2}-18 x+9=0\)
- \(9 x^{2}-8 y^{2}-18 x-9=0\)
- \(9 x^{2}-8 y^{2}+18 x+9=0\)
Answer
(C) 9 x^ 2 -8 y^ 2 -18 x-9=0
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