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MHT CET20226 Aug 2022Evening ShiftMathematicsPair of LinesActual

The joint equation of pair of lines through the origin and making an equilateral triangle with the line y=5 is

Options

  1. A3 x^2-y^2=0
  2. B5 x^2-y^2=0
  3. Cx^2-3 y^2=0
  4. D3 x^2-y^2=0

Correct answer

A. 3 x^2-y^2=0

Step-by-step solution

aligned & y= 60^ x y=x & y= 120^ x y=-x & joint equation =(x-y)(x+y)=0 & 3 x^2-y^2=0 aligned

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