Home
Class 11
MATHS
If abs(bara+barb) = abs(bara-barb), " th...

If `abs(bara+barb) = abs(bara-barb), " then " bara.barb =`

A

0

B

`pi/3`

C

`pi/2`

D

16

Text Solution

Verified by Experts

The correct Answer is:
c
Promotional Banner

Topper's Solved these Questions

  • DOT PRODUCT OF TWO VECTORS

    AAKASH SERIES|Exercise EXERCISE - II|71 Videos

  • DOT PRODUCT OF TWO VECTORS

    AAKASH SERIES|Exercise PRACTICE EXERCISE|57 Videos

  • DOT PRODUCT OF TWO VECTORS

    AAKASH SERIES|Exercise ADDITIONAL EXERCISE|21 Videos

  • DIRECTION COSINES AND RATIOS

    AAKASH SERIES|Exercise ADVANCED SUBJECTIVE TYPE QUESTIONS|8 Videos

  • ERRORS AND APPROXIMATIONS

    AAKASH SERIES|Exercise ADVANCED SUBJECTIVE TYPE QUESTION|15 Videos

Similar Questions

Explore conceptually related problems

If, absbara = 3, absbarb = 4 abs(bara+barb) = 1 " ,then " abs(bara-barb) =

If absbara =2, absbarb =3, (bara,barb) = 120^(@), " then " bara.barb =

The vectors bara,barb,barc " satisfy the condition " bara+barb+2barc=bar0. " If " absbara=1, absbarb =4, absbarc =2 , " then " bara.barb+barb.barc+barc.bara =

Let bara and barb be non-zero, non collinear vectors. If abs(bara+barb) = abs(bara-barb) " find the angle between " bara and barb .

If absbara =3, absbarb = 4, and (bara-barb) = 5, " then " abs(bara+barb)=

If barmu =bara-barb, barv=bara+barb and absbara=absbarb, " then " barmu.barv is

If bare_(1) = (1,1,1), bare_(2) = (1,1,-1) and bara, barb " are two vectors such that " bare_(1)=2bara+barb and bare_(2)= bara+2barb, " then " (bara,barb) =

If bara,barb are two vectors of length 2, 1 respectively and abs(bara-barb) = sqrt3, " then " (bara,barb) =

If absbara =3, absbarb = 4 and (bara,barb) = pi/2," then " abs(bara+barb)=

AAKASH SERIES-DOT PRODUCT OF TWO VECTORS-EXERCISE - I
  1. If the sum of two unit vectors is an unit vector, the magnitude of the...

    Text Solution

    |

  2. If absbara =3, absbarb = 4, and (bara-barb) = 5, " then " abs(bara+ba...

    Text Solution

    |

  3. If abs(bara+barb) = abs(bara-barb), " then " bara.barb =

    Text Solution

    |

  4. If bara,barb,barc are three vectors such that absbara =1, absbarb = ...

    Text Solution

    |

  5. If bara = 3bari - 4barj +5bark, barb = 2bari+3barj-bark ," then the an...

    Text Solution

    |

  6. If bara =-bari+barj+2bark, barb =2bari +barj-bark, barc =-2bari+barj+3...

    Text Solution

    |

  7. The acute angle made by the line joining the points (1, -3 ,2) and (3,...

    Text Solution

    |

  8. If bara = bari+2barj+3bark, barb = -bari+2barj+bark, barc =3bari +barj...

    Text Solution

    |

  9. If the vectors bari -2xbarj-3ybark and bari +3xbarj+2ybark are orthogo...

    Text Solution

    |

  10. If bara=bari+barj+tbark, barb=bari+2barj+3bark, then the value of 't' ...

    Text Solution

    |

  11. If the vectors bara =bari - barj + 2bark, barb =2bari+4barj+bark and b...

    Text Solution

    |

  12. If bara,barb, bara+barb " are unit vectors, then " (bara,barb)=

    Text Solution

    |

  13. If three unit vectors bara,barb,barc " satisfy " bara+barb+barc =bar0 ...

    Text Solution

    |

  14. The orthogonal projection vector of bara = 2bari + 3barj+3bark " on "...

    Text Solution

    |

  15. The length of projection of bari -2barj+2bark on X-axis is

    Text Solution

    |

  16. If bara = bari -barj-bark, barb = lambdabari-3barj+bark " and the or-t...

    Text Solution

    |

  17. The component vector of 4bari-4barj-7bark " perpendicular to " bari-2b...

    Text Solution

    |

  18. The vectors equation of the plane which is per-pendicular to 2bari -3b...

    Text Solution

    |

  19. Equation of a plane passing through the point A (3,-2,1) and perpendic...

    Text Solution

    |

  20. Perpendicular distance from origin to the plane barr.barm = bara.barm ...

    Text Solution

    |