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MHT CET202124 Sep 2021Evening ShiftMathematicsPair of LinesActual

If the lines represented by ( k ^2+2 ) x ^2+3 xy -6 y ^2=0 are perpendicular to each other, then the values of K are

Options

  1. A3
  2. B4
  3. C1
  4. D2

Correct answer

D. 2

Step-by-step solution

The lines (k^2+2 ) x^2+3 x y-6 y^2=0 are perpendicular to each other. ( k ^2+2 )+(-6)=0 k ^2=4 k = 2

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