Home
Class 11
MATHS
Find the direction cosines of a vector w...

Find the direction cosines of a vector whose direction ratios are
(i) 1,2,3

Text Solution

Verified by Experts

The correct Answer is:
implies ((1)/(sqrt 14),(2)/(sqrt14),(3)/(sqrt 14))`
Promotional Banner

Topper's Solved these Questions

  • Vector Algebra -I

    PREMIERS PUBLISHERS|Exercise Solution to Exercise(8.3)|19 Videos

  • Vector Algebra -I

    PREMIERS PUBLISHERS|Exercise Solution to Exercise(8.4)|10 Videos

  • Vector Algebra -I

    PREMIERS PUBLISHERS|Exercise Solution to Exercise (8.1)|13 Videos

  • TWO DIMENSIONAL ANALYTICAL GEOMETRY

    PREMIERS PUBLISHERS|Exercise PROBLEM FOR PRACTICE (CHOOSE THE CORRECT OPTION)|28 Videos

Similar Questions

Explore conceptually related problems

Find the direction consines of a line whose direction ratios are 1,3,-2

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

Find the direction cosines of the vector 3hati+2hat j+hat k

Find the direction cosines of the vector hati+2hatj+3hatk .

Find the direction cosines of the vector joining the points A (1,2,-3) and B(-1,-2,1) directed from A to B.

Find the direction cosines of the vector hat i+2 hat j+3 hat kdot

PREMIERS PUBLISHERS-Vector Algebra -I-Solution to Exercise(8.2)
  1. Verify whether the ratios are direction cosines of some vector or not....

    Text Solution

    |

  2. Verify whether the ratios are direction cosines of some vector or not....

    Text Solution

    |

  3. Find the direction cosines of a vector whose direction ratios are (i...

    Text Solution

    |

  4. Find the direction cosines of a vector whose direction ratios are (i) ...

    Text Solution

    |

  5. Find the direction cosines of a vector whose direction ratios are (i) ...

    Text Solution

    |

  6. Find the direction cosines and direction ratios for the following vect...

    Text Solution

    |

  7. Find the direction cosines and direction ratios for the following vect...

    Text Solution

    |

  8. Find the direction cosines and direction ratios for the following vect...

    Text Solution

    |

  9. Find the direction cosines and direction ratios for the following vect...

    Text Solution

    |

  10. Find the direction cosines and direction ratios for the following vect...

    Text Solution

    |

  11. Find the direction cosines and direction ratios for the following vect...

    Text Solution

    |

  12. A triangle is formed by joining the points (1,0,0), (0,1,0) and (0,0,1...

    Text Solution

    |

  13. If (1)/(2),(1)/(sqrt(2)) a are the direction cosines of some vector, t...

    Text Solution

    |

  14. If (a,a+b,a+b+c) is one set of direction ratios of the line joining (1...

    Text Solution

    |

  15. Show that the vectors 2hat(i)-hat(j)+hat(k),3hat(i)-4hat(j)-4hat(k), h...

    Text Solution

    |

  16. Find the value of lambda for which the vectors veca=3hat(i)+2hat(j)+9h...

    Text Solution

    |

  17. Show that the vectors are coplanar hat(i)-2hat(j)+3hat(k),-2hat(i)+...

    Text Solution

    |

  18. Show that the following vectors are co-planar (ii) 5hati+6hatj+7hatk,7...

    Text Solution

    |

  19. Show that the points whose position vectors 4hat(i)+5hatj+hatk,-hatj-h...

    Text Solution

    |

  20. If veca=2hati+3hatj-4hatk,vecb=3hati-4hatj-5hatk, and vecc=-3hati+2hat...

    Text Solution

    |