MCQ
The equation ${x^2} - 16xy - 11{y^2} - 12x + 6y + 21 = 0$ represents
  • A
    Parabola
  • B
    Ellipse
  • Hyperbola
  • D
    Two straight lines

Answer

Correct option: C.
Hyperbola
c
(c) $\Delta \ne 0,\,{h^2} > ab$.

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