Home
Class 12
MATHS
If |k vec a| = 1 then the value of k = ....

If `|k vec a| = 1` then the value of `k` = ___.

Promotional Banner

Topper's Solved these Questions

  • THREE DIMENSIONAL GEOMETRY

    MODERN PUBLICATION|Exercise EXERCISE|40 Videos

Similar Questions

Explore conceptually related problems

If int _(0)^(1) (3x ^(2) + 2x +k) dx =0, then find the value of k.

(i) If the vectors vec a+vec b+vec c = 0 |vec a|=3 , |vec b|=5 and |vec c|=7 , find the angle between a and b (ii) If the vectors 2hat i+3hat j+4hat k and (a-1)hat i+(b+2)hat j+8hat k are parallel then find the values of a and b.

If vec(a) = xhat(i) + 2hat(j) - z hat(k) and vec(b) = 3hat(i) - y hat(j) + hat(k) are two equal vectors, then find the value of x + y +z.

Let vec a is any vector than what is the value of (vec a.hat i)hat i+(vec a.hat j)+(vec a.hat k)hat k ?

If the distance between the points (-1, -1, k) and (1,-1,1) is 2 then what is the value of k ?

If [[a_(1),b_(1)],[c_(1),d_(1)]] = k[[a_(1),c_(1)],[b_(1),d_(1)]] then what is the value of k ?

If [[1,3],[4,5]]=[[7,11],[k,23]] then write the value of k.

MODERN PUBLICATION-VECTOR-EXERCISE
  1. If vec a=2hati+hatj, vec b=hatk what is vec a.vec b?

    Text Solution

    |

  2. In each of the problems given below, find the work done by a force vec...

    Text Solution

    |

  3. If |k vec a| = 1 then the value of k = .

    Text Solution

    |

  4. If vec a × vec b = hat n then what is the angle between vec a and vec ...

    Text Solution

    |

  5. Can dot product of two non-zero vectors be zero?

    Text Solution

    |

  6. What is the value of [i+j] along [3i+4j].

    Text Solution

    |

  7. If vec a = 2i+3j-6k and vec b = prop hati-hatj+2khat are parallel then...

    Text Solution

    |

  8. If 2i-j+k and i-3j-5k and 3i-4j-4k form a triangle, what type of trian...

    Text Solution

    |

  9. If (-3,tau,1) | (1,0,3) then tau = .

    Text Solution

    |

  10. If on action of force f=2i+j-k, a prticle displaced from A (0,1,2) to ...

    Text Solution

    |

  11. If (vec a + vec b).(vec a - vec b) = 0 then what is the relation betwe...

    Text Solution

    |

  12. A vector perpendicular to the vectors hati+hatj and hati+hatk is

    Text Solution

    |

  13. If vec a, vec b, vec c are unit vectors and vec a + vec b + vec c = 0 ...

    Text Solution

    |

  14. Are three points with position vectors vec a + vec b, vec a - vec b an...

    Text Solution

    |

  15. Find the unit vector perpendicular to i + j and i + k.

    Text Solution

    |

  16. If vec a × vec b = vec b × vec c != 0, Prove that vec a + vec c = m ve...

    Text Solution

    |

  17. Let vec a is any vector than what is the value of (vec a.hat i)hat i+(...

    Text Solution

    |

  18. What is the value of (hat i+hat j)×(hat j+hat k).(hat k+hat i)?

    Text Solution

    |

  19. If vec Avec C and vec Bvec D are the diagonals of the parallelogram AB...

    Text Solution

    |

  20. Find the area of the parallelogram whose adjacent sides are gives by t...

    Text Solution

    |