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JEE Main2007MathematicsStraight LinesActual

If one of the lines of m y^2+ (1-m^2 ) x y-m x^2=0 is a bisector of the angle between the lines x y=0 , then m is

Options

  1. A-1 / 2
  2. B-2
  3. C1
  4. D2

Correct answer

C. 1

Step-by-step solution

Equation of bisectors of lines x y=0 are y= x put y= x in m y^2+ (1-m^2 ) x y-m x^2=0 , we get (1-m^2 ) x^2=0 m= 1 .

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