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JEE Main2002MathematicsStraight LinesActual

The point of lines represented by 3 a x^2+5 x y+ (a^2-2 ) y^2=0 and perpendicular to each other for

Options

  1. Atwo values of a
  2. Ba
  3. Cfor one value of a
  4. Dfor no values of a

Correct answer

A. two values of a

Step-by-step solution

3 a+a^2-2=0 a^2+3 a-2=0 a= -3 9+8 2 = -3 17 2

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