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The value of $k$ for which $4x^2 – 8xy + ky^2 = 0$ does not represent a pair of straight lines (both passing through the origin) is:

  1. 0
  2. 2
  3. 9
  4. 3
asked in Non GATE by Veteran (59.6k points) | 185 views

2 Answers

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d) 3
answered by Loyal (5.3k points)
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ans is C.

for k=9, it will become an expression for a circle.
answered by Loyal (8.3k points)

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