Home
Class 12
MATHS
The two values of k for which the lines...

The two values of k for which the lines with direction ratios `k, -6, -2` and `k -1, k, 4` are perpendicular to each other are

A

1, 8

B

1, -8

C

`-1, 8`

D

`-1, -8`

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • QUESTION PAPER MHT-CET 2016

    NIKITA PUBLICATION|Exercise MCQs|50 Videos

  • TRIGONOMETRIC FUNCTIONS

    NIKITA PUBLICATION|Exercise MCQs|404 Videos

Similar Questions

Explore conceptually related problems

If the line with direction ratios k, -4, -1 is perpendicular to the line with direction ratios k, 5, -4 then k =

If the angle between the lines with direction ratios 2, -1, 1 and 1, k, 2 is 60^(@) , then k =

if xi-3j+5k and -xi+xj+2k are perpendicular to each other then the value of x=

If the line with direction ratios 2, -1, 2 is perpendicular to the line with direction ratios 1, k, -3, then k =

If the line with direction ratios 5, 3k, 7 is perpendicular to the line with direction ratios k, 1, -8, then k =

If the cosine of the angle between the lines with direction ratios 1, -1, 2 and 0, 1, k is (sqrt(3))/(2) , then k =

If lines are perpendicular, then find the value of k.

Direction ratios of two lines are 3, -2, k and -2k, 4 Find k, if the lines are perpendicular to each other.

Find the values of k for which k+12, k-6 and 3 are in GP.

Write the value of k for which the planes 2x-5y+kz=4 and x+2y-z=6 are perpendicular to each other.

NIKITA PUBLICATION-THREE DIMENSIONAL GEOMETRY -MULTIPLE CHOICE QUESTIONS
  1. If the angle between the vectors bar a and bar b having direction rat...

    Text Solution

    |

  2. If the angle between the lines with direction ratios 2, -1, 1 and 1, k...

    Text Solution

    |

  3. The two values of k for which the lines with direction ratios k, -6, ...

    Text Solution

    |

  4. If the cosine of the angle between the lines with direction ratios 1, ...

    Text Solution

    |

  5. The acute angle between the lines joining points (2, 1, 3) and (1, -1,...

    Text Solution

    |

  6. If A-=(3,4-2),B-=(1,-1,2),C-=(0,3,2) and D-=(3,5,6), then the angle be...

    Text Solution

    |

  7. The acute angle between the vectors bar(AB) and bar(CD), where A-=(1,2...

    Text Solution

    |

  8. If triangleABC is right angled at B , where A(5,6,4), B(4,4,1) and C(8...

    Text Solution

    |

  9. If Delta ABC is right angled at A, where A-=(4, 2, 3), B-=(3, 1, 8) an...

    Text Solution

    |

  10. If DeltaABC, if A-=(3,2,6), B-=(1,4,5) and C-=(3,5,3), then m angle...

    Text Solution

    |

  11. If A (0, 7, 10), B(-1, 6, 6) and C(-4, 9, 6) are the vertices of Delta...

    Text Solution

    |

  12. If bar a, barb, barc are three mutually perpendicular vectors of equal...

    Text Solution

    |

  13. The angle between the lines whose direction cosines satisfy the equ...

    Text Solution

    |

  14. Find the direction cosines of the two lines which are connected by ...

    Text Solution

    |

  15. Find the acute angle between the two straight lines whose direction co...

    Text Solution

    |

  16. The direction cosines l, m and n of two lines are connected by the rel...

    Text Solution

    |

  17. If the direction ratio of two lines are given by 3lm-4ln+mn=0 and l+2m...

    Text Solution

    |

  18. The angle between the lines whose direction cosines l, m, n satisfy t...

    Text Solution

    |

  19. Find the angle between the lines whose direction cosines are given by ...

    Text Solution

    |

  20. Direction ratios of two lines satisfy the relations 2a-b+2c=0 and ab+...

    Text Solution

    |