Home
Class 12
MATHS
If x^(2)-k x y-y^(2)+2 y+2=0 represents ...

If `x^(2)-k x y-y^(2)+2 y+2=0` represents a pair of lines than the value of `k` is

A

`sqrt(2)`

B

2

C

`2sqrt(2)`

D

none of these

Text Solution

Verified by Experts

The correct Answer is:
D
Promotional Banner

Topper's Solved these Questions

  • MEASUREMENT OF ANGLES, TRIGONOMETRIC RATIOS AND RELATION BETWEEN SIDES AND ANGLES OF A TRIANGLE

    HIMALAYA PUBLICATION|Exercise QUESTION BANK|251 Videos

  • PARABOLA

    HIMALAYA PUBLICATION|Exercise QUESTION BANK|233 Videos

Similar Questions

Explore conceptually related problems

If k x^(2)-y^(2)+2 x-y=0 represents a pair of lines, then k=

If x^(2)+k y^(2)+x-y=0 represents a pair of lines then k=

If x^(2)-kxy+y^(2)+2y+2=0 represent a pair of st lines then k equals

If 3x^(2)+xy-y^(2)-3x+6y+K=0 represents a pair of lines , then K=

If ax^(2)-y^(2)+4x-y=0 represents a pair of lines then a ...

If the equation lambda x^(2)-5 x y+6 y^(2)+x-3 y=0 represents a pair of lines, then their point of intersection is

If 4 x y+2 x+2 f y+3=0 represents a pair of lines, then f=

A value of p for which the equation x^(2)+p x y+y^(2)-5 x-7 y+6=0 represents a pair of lines is

If the equation x^(2)+y^(2)+2gx+2fy+1=0 represents a pair of lines then

If the lines 2 x^(2)+7 x y+3 y^(2)-9 x-7 y+k=0 represents a pair of lines, then k=

HIMALAYA PUBLICATION-Pair Of Lines-QUESTION BANK
  1. If the pair of lines x y-x-y+1=0 and the line a x+2 y-3=0 are concurr...

    Text Solution

    |

  2. The equation a x^(2)+b y^(2)+c x+c y=0, c ne 0 represents a pair of l...

    Text Solution

    |

  3. If x^(2)-k x y-y^(2)+2 y+2=0 represents a pair of lines than the valu...

    Text Solution

    |

  4. The equation to the pair of lines passing through (1,-1) and parallel ...

    Text Solution

    |

  5. The equation 9 x^(2)+24 x y+b^2 y^(2)-12 x+16 y-12=0 represents a pai...

    Text Solution

    |

  6. Distance between the pair of lines represented by the equation x^(2)-...

    Text Solution

    |

  7. The join of (-3,2) and (4,6) is cut by x -axis in the ratio

    Text Solution

    |

  8. The sum of the slopes of the lines represented by 4x^(2)+2hxy-7y^(2)=0...

    Text Solution

    |

  9. If one of the pair of lines represented by a x^(2)+2 h x y+b y^(2)=0 i...

    Text Solution

    |

  10. If one of the pair of lines represented by 6 x^(2)+2 h x y-3 y^(2)=0 i...

    Text Solution

    |

  11. The angle between the pari of lines represented by x^(2)-7xy+12y^(2)...

    Text Solution

    |

  12. The distance between the parallel lines given by (x+7y)^(2)+4sqrt(2...

    Text Solution

    |

  13. If the slope of one of the lines represented by ax^(2)-6xy+y^(2)=0 is...

    Text Solution

    |

  14. If the pair of lines a x^(2)+2 h x y-a y^(2)=0 and b x^(2)+2 g x y-b y...

    Text Solution

    |

  15. If the pairs of lines 3x^(2)-2pxy-3y^(2)=0 and 5x^(2)-2qxy-5y^(2)=0...

    Text Solution

    |

  16. The equation x-y=4 and x^(2)+4xy+y^(2)=0 represent the sides of

    Text Solution

    |

  17. If a x^(2)+2 h x y+b y^(2)+2 g x+2 f y+c=0 represents a parallel lines...

    Text Solution

    |

  18. If x^(2)-k x y-y^(2)+2 y+2=0 represents a pair of lines than the valu...

    Text Solution

    |

  19. If the pair of lines a x^(2)+2 h x y+b y^(2)=0 is rotated about the or...

    Text Solution

    |

  20. Area of triangle formed by : 2x^(2)+xy-3y^(2)=0 and x+y=3 is

    Text Solution

    |