Home
Class 12
MATHS
Direction cosines of x-axis are...

Direction cosines of x-axis are

A

lt1,0,0gt

B

lt0,1,0gt

C

lt0,0,1gt

D

lt0,1,1gt

Text Solution

Verified by Experts

Promotional Banner

Topper's Solved these Questions

  • THREE DIMENSIONAL GEOMETRY

    PRADEEP PUBLICATION|Exercise EXERCISE|373 Videos

  • RELATIONS AND FUNCTIONS

    PRADEEP PUBLICATION|Exercise EXERCISE|401 Videos

  • VECTORS

    PRADEEP PUBLICATION|Exercise EXERCISE|438 Videos

Similar Questions

Explore conceptually related problems

Direction cosines of hat i are ‘

If the direction cosine of a line are , then,

Write the direction cosines of the Y-axis.

If alpha, beta, gamma are the angles that a line makes with the positive direction of x, y, z axis repectively, then the direction cosines of the line are:

Direction cosines of any normal to xy-plane are

Find the direction cosines of a line parallel to the line : (x-5)/6=(y+4)/2=(7-z)/6

Can be the direction cosines of a line?

Find the direction cosines of x, y and z-axis.

PRADEEP PUBLICATION-THREE DIMENSIONAL GEOMETRY-EXERCISE
  1. The equation of a line, which is parallel to 2hati+hatj+3hatk and whic...

    Text Solution

    |

  2. True or false If the foot of perpendicular drawn from the origin to a ...

    Text Solution

    |

  3. Direction cosines of x-axis are

    Text Solution

    |

  4. Direction cosines of any normal to xy-plane are

    Text Solution

    |

  5. Distance of the point (alpha, beta,gamma) from y-axis is

    Text Solution

    |

  6. The distance of a point P(a,b,c) from x axis is:

    Text Solution

    |

  7. If the direction cosine of a line are < k,k,k >, then,

    Text Solution

    |

  8. If a line makes angles alpha,beta,gamma respectively with positive dir...

    Text Solution

    |

  9. Distance of the point (alpha, beta,gamma) from y-axis is

    Text Solution

    |

  10. The co-ordinates of foot of the perpendicular drawn from the point (2,...

    Text Solution

    |

  11. The equation of x-axis is of the form

    Text Solution

    |

  12. A set of D.R of the line vecr=(hati+hatj+hatk)+1(2hati+3hatj+6hatk)are

    Text Solution

    |

  13. If alpha, beta, gamma are the angles that a line makes with the positi...

    Text Solution

    |

  14. P is a point on the line segment joining the points (3, 2, -1) and (6,...

    Text Solution

    |

  15. The shortest destance between vecr = veca1 + lambdavecb and vecr = vec...

    Text Solution

    |

  16. The area of the quadrilateral ABCD, where A 0,4, 1), B (2, 3, -1), C (...

    Text Solution

    |

  17. The line x=1, y=2 is

    Text Solution

    |

  18. The distance between the planes 3x+2y-6z=14=0 and 3x+2y-6z+21=0 is

    Text Solution

    |

  19. The line (x-x1)/0=(y-y1)/1=(z-z1)/2 is

    Text Solution

    |

  20. The line (x-x1)/0=(y-y1)/1=(z-z1)/2 is

    Text Solution

    |