Home
Class 11
MATHS
If bara xx barb=barc and barbxx barc=bar...

If `bara xx barb=barc` and `barbxx barc=bara`, then

A

`|barc|=1, |bara|=1`

B

`|barb|=1,|barc|=|bara|`

C

`|barb|=2,|barb|=2|bara|`

D

`|bara|=1,|barb|=|barc|`

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • APPENDICES (REVISION EXERCISE)

    AAKASH SERIES|Exercise MULTIPLE PRODUCT OF TWO VECTORS|21 Videos

  • APPENDICES (REVISION EXERCISE)

    AAKASH SERIES|Exercise DOT PRODUCT OF TWO VECTORS|34 Videos

  • 3D-COORDINATE SYSTEM

    AAKASH SERIES|Exercise PRACTICE EXERCISE|40 Videos

  • CHANGE OF AXES

    AAKASH SERIES|Exercise Practice Exercise|29 Videos

Similar Questions

Explore conceptually related problems

If bara. barb = barb. barc = barc . bara = 0 then [bara barb barc] =

If bara, barb, barc are three vectors such that |bara|=|barc|=1, |barb|=4, |barb xx barc|=2 and 2barb=barc +lambda bara , then lambda=

If x(bara xx barb) +y(barb xx barc)+z(barc xx bara)=barr and [(bara, barb,barc)]=8 then x+y+z=

[bara barb barc]+[bara barc barb] =

If (bara xx barb).(barc xx bard) = (bara.barc)(barb.bard) + k(bara.bard)(barb.barc) then the value of k is

If bara = 2bari - barj, barb = 4barj + bark, barc = 3bark then (2bara +barb+barc). (-barb+2barc) xx barc =

AAKASH SERIES-APPENDICES (REVISION EXERCISE)-CROSS PRODUCT OF TWO VECTORS
  1. Let bara and barb be two non-collinear unit vectors. If baru=bara-(ba...

    Text Solution

    |

  2. Let a = 2i + j - 2k and b = I + j. If c is vector such that ac = |c|, ...

    Text Solution

    |

  3. If bara, barb, barc are three vectors such that |bara|=|barc|=1, |barb...

    Text Solution

    |

  4. The vector barc is perpendicular to both bara=(1,-2,-1), barb=(2, 1, -...

    Text Solution

    |

  5. If barr satisfies the equation barr xx (bari+2barj+bark)=bari-bark, th...

    Text Solution

    |

  6. If A,B,C,D are four point and |bar(AB) xx bar(CD) +bar(BC)xx bar(AD) +...

    Text Solution

    |

  7. If A(1), A(2), ……A(n) are the vertices of a regular polygon with 'n'...

    Text Solution

    |

  8. Let bara=2bari+3barj-bark, barb=3bari-barj+bark and barc=bari+barj+3ba...

    Text Solution

    |

  9. Let barr xx bara=barb xx bara and barr.barc=0 where bara.barc ne0 then...

    Text Solution

    |

  10. If bara xx barb=barc and barbxx barc=bara, then

    Text Solution

    |

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

    Text Solution

    |

  12. If hatx, haty and hatz are three unit vectors in three-dimensional spa...

    Text Solution

    |

  13. Let veca=hatj-hatk and vecc=hati-hatj-hatk. Then vector vecb satisfyin...

    Text Solution

    |

  14. The vector (hati xx veca.vecb)i +(hatj xx veca.vecb)hatj+(hatk xx veca...

    Text Solution

    |

  15. A vector vecn is inclined to x-axis at 45^(0), to y-axis at 60^(0) and...

    Text Solution

    |

  16. If the angle theline 2(x+1)=y=z+4 and the plane 2x-y+sqrt(lambda)z+4=0...

    Text Solution

    |

  17. Let veca and vecb be two unit vectors such that |veca+vecb|=sqrt(3). I...

    Text Solution

    |