Home
Class 12
MATHS
Find the direction cosines of the vector...

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

Text Solution

Verified by Experts

The correct Answer is:
`-(1)/(3),-(2)/(3),(2)/(3)`
Promotional Banner

Topper's Solved these Questions

  • VECTOR ALGEBRA

    NCERT TELUGU|Exercise EXERCISE 10.3|18 Videos

  • VECTOR ALGEBRA

    NCERT TELUGU|Exercise EXERCISE 10.4|12 Videos

  • VECTOR ALGEBRA

    NCERT TELUGU|Exercise EXERCISE 10.1|5 Videos

  • RELATIONS AND FUNCTIONS

    NCERT TELUGU|Exercise MISCLELLANEOUS EXERCISE ON CHAPTER 1|18 Videos

Similar Questions

Explore conceptually related problems

Find the vector joining the points P(2,3,0) and Q(-1,-2,-4) directed from P to Q.

Find the direction cosines of the line joining the points (-4,1,7),(2,-3,2)

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

Find the position vector of the mid point of the vector joining the points P(2,3,4) and Q(4,1,-2).

The d.c.'s of the line joining the points A(4, 3, 1), B(-2, 1, -2) are

Slope of the line joining the points A(-1 .4, - 3.7) and B(-2.4,1.3) is ....

The length of the projection of the vector (1,-2,-1) on the vector joining the points (2,2,-6) and (6,-2,1) is

NCERT TELUGU-VECTOR ALGEBRA-EXERCISE 10.2
  1. Compute the magnitude of the following vectors : veca=hati+hatj+k,...

    Text Solution

    |

  2. Write two different vectors having same magnitude.

    Text Solution

    |

  3. Write two different vectors having same direction.

    Text Solution

    |

  4. Find the values of x and y so that the vectors 2hati+3hatjandxhati+yh...

    Text Solution

    |

  5. Find the scalar and vector components of the vector with initial poi...

    Text Solution

    |

  6. Find the sum of the vectors veca=hati-2hatj+hatk,vecb=-2hati+4hatj+5h...

    Text Solution

    |

  7. Find the unit vector in the direction of the vector veca=hati+hatj+2h...

    Text Solution

    |

  8. Find the unit vector in the direction of vector vec(PQ) , where P and ...

    Text Solution

    |

  9. For given vectors veca=2hati-hatj+2hatkandvecb=-hati+hatj-hatk, find t...

    Text Solution

    |

  10. Find a vector in the direction of vector 5hati-hatj+2hatk which has ma...

    Text Solution

    |

  11. Show that the vectors 2hati-3hatj+4hatkand-4hati+6hatj-8hatk are coll...

    Text Solution

    |

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

    Text Solution

    |

  13. Find the direction cosines of the vector joining the points A(1,2,-3)...

    Text Solution

    |

  14. Show that the vector hati+hatj+hatk is equally inclined to the axes OX...

    Text Solution

    |

  15. Find the position vector of a point R which divides the line joing two...

    Text Solution

    |

  16. Find the position vector of the mid point of the vector joining the p...

    Text Solution

    |

  17. Show that the points A,B and C with position vectors , veca=3hati-4hat...

    Text Solution

    |

  18. In triangle ABC (Fig 10.18), which of the following is not true :

    Text Solution

    |

  19. If vecaandvecb are two collinear vectors , then which of the following...

    Text Solution

    |