Home
Class 12
MATHS
Direction ratios of two lines satisfy th...

Direction ratios of two lines satisfy the relations `2a-b+2c=0` and `ab+bc+ca=0`. Then the angle between two lines is

A

`60^(@)`

B

`30^(@)`

C

`90^(@)`

D

`145^(@)`

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

The direction ratios of two lines satisfy the relation 2a - b + 2c = 0 and ab + bc + ca = 0 . Show that the lines are perpendicular.

If the direction ratio of two vectors are connected by the relations a+b+c=0 and a^(2)+b^(2)=c^(2). then the angle between two vectors

The direction cosines l, m and n of two lines are connected by the relations l+m+n=0 and lm=0 , then the angle between the lines is

If the direction ratio of two lines are given by 3lm-4ln+mn=0 and l+2m+3n=0 , then the angle between the lines, is

The dr's of two lines are given by a+b+c=0,2ab+2ac-bc=0. Then the angle between the lines is

The direction rations of two lines are a,b,c and (b-c) , (c-a),(a-b) respectively . The angle between these lines is

If the direction ratios l, m ,n of the lines satisfy l-5m+3n=0, 7l^(2)+5m^(2)-3n^(2)=0 then the angle between the lines is

NIKITA PUBLICATION-THREE DIMENSIONAL GEOMETRY -MULTIPLE CHOICE QUESTIONS
  1. The angle between the lines whose direction cosines l, m, n satisfy t...

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

  4. IF the direction ratios of two vectors are connected by the relations ...

    Text Solution

    |

  5. The angle between diagonal of a cube and diagonal of a face of the c...

    Text Solution

    |

  6. Let l(1),m(1),n(1),l(2),m(2),n(2) and l(3),m(3), n(3) are direction co...

    Text Solution

    |

  7. The direction cosines of a line equally inclined to three mutually per...

    Text Solution

    |

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

    Text Solution

    |

  9. If l(1), m(1), n(1) and l(2), m(2), n(2) are the direction cosines of ...

    Text Solution

    |

  10. The direction ratios of vector perpendicular to the two lines whose di...

    Text Solution

    |

  11. The direction ratios of a vector perpendicular to the two lines whose ...

    Text Solution

    |

  12. Find the direction cosines of the line which is perpendicular to the l...

    Text Solution

    |

  13. Direction ratios of the line which is perpendicular to the lines with ...

    Text Solution

    |

  14. The direction cosines of the line which is perpendicular to the lines ...

    Text Solution

    |

  15. The direction ratios of a line which is perpendicular to the two line...

    Text Solution

    |

  16. The direction ratios of a line which is perpendicular to the two line...

    Text Solution

    |

  17. Points (-2, 4, 7), (3, -6 -8) and (1, -2, -2) are

    Text Solution

    |

  18. If the points (-1, 3, 3), (-2, 0, 1), (-4, -6, -3) and (2, 12, 9) are

    Text Solution

    |

  19. prove that point A(5, -1, 1), B(7, -4, 7), C(1, -6, 10) and D(-1, -3, ...

    Text Solution

    |

  20. The points (5, -4, 2), (4, -3, 1), (7, -6, 4) and (8, -7, 5) are the v...

    Text Solution

    |