MCQ
The one which does not represent a hyperbola is
  • A
    $xy = 1$
  • B
    ${x^2} - {y^2} = 5$
  • C
    $(x - 1)(y - 3) = 3$
  • ${x^2} - {y^2} = 0$

Answer

Correct option: D.
${x^2} - {y^2} = 0$
d
(d) For hyperbola $\Delta \ne 0$ and ${h^2} > ab$.

Here $\Delta = 0$.

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