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Q: Central conicoid is represented by the following
  • A.
    option image
  • B.
    option image
  • C.
    option image
  • D. All of the above / ऊपर दिये सारे
Correct Answer: Option D - All the equations given in option represent central conicoid. Hence option (d).
D. All the equations given in option represent central conicoid. Hence option (d).

Explanations:

All the equations given in option represent central conicoid. Hence option (d).