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AP EAMCET202315 May 2023Morning ShiftMathematicsHyperbolaActual

The locus of a point which is at a distance of 2 units from the line 2 x-3 y+4=0 and at a distance of 13 units from a point (5,0) is

Options

  1. A8 x^2+12 x y+56 x-24 y+84=0
  2. B12 x y-5 y^2-56 x+24 y+84=0
  3. C8 x ^2+12 xy + y ^2-56 x +24 y +84=0
  4. D8 x^2+12 x y-7 y^2-56 x+24 y+84=0

Correct answer

B. 12 x y-5 y^2-56 x+24 y+84=0

Step-by-step solution

Let P(h, k) be the point whose locus is to be find. given (h-5)+(k-0)^2 = 13 h^2=-k^2+10 h-12...(1) also given, 2 h-3 k+4 4+9 =2 Squaring both sides, we get- 4 h^2+9 k^2+16-12 h k-24 k+16 h=52 Putting h^2 value in above equation we get 12 h k-5 k^2-56 h+24 k+84=0 for getting locus replacing h, k by x, y respectively 12 x y-5 y^2-56 x+24 y+84=0

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