Home
Class 11
MATHS
If bara.bari = 4 then (bara xx barj).(2b...

If `bara.bari = 4` then `(bara xx barj).(2barj - 3bark) =`

A

`-12`

B

0

C

2

D

12

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • MULTIPLE PRODUCT OF VECTORS

    AAKASH SERIES|Exercise EXERCISE -II|100 Videos

  • MULTIPLE & SUBMULTIPLE ANGLES

    AAKASH SERIES|Exercise PRACTICE EXERCISE|68 Videos

  • PAIR OF STRAIGHT LINES

    AAKASH SERIES|Exercise ADVANCED SUBJECTIVE TYPE QUESTIONS|15 Videos

Similar Questions

Explore conceptually related problems

(bari-barj) xx (barj-bark).(bark-bari) =

If bara= 2bari+barj-3bark, barb = bari-2barj+bark, barc = -bari+barj-4bark" and "bard=bari+barj+bark , then compute |(bara xx barb)xx (barc xx bard)| .

(bara.bari)^(2) + (bara.barj)^(2) + (bara.bark)^(2) =

If bara=2bari+3barj-bark,barb=-bari+2barj-4bark, barc=bari+barj+bark then abs((baraxxbarb)· (barbxxbarc)) =

If bara=2bari+barj-bark,barb=-bari+2barj-4bark,barc=bari+barj+bark then find (baraxxbarb).(barbxxbarc)

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

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

If bara = bari - 2barj - 3bark, barb = 2bari + barj - bark , barc = bari + 3barj - 2bark then find bar(a) xx (barb xx barc) and |(barb xx barc) xx barc | .

AAKASH SERIES-MULTIPLE PRODUCT OF VECTORS-PRACTICE EXERCISE
  1. Which of the following are meaningful ?

    Text Solution

    |

  2. Which of the following is meaningless ?

    Text Solution

    |

  3. If bara.bari = 4 then (bara xx barj).(2barj - 3bark) =

    Text Solution

    |

  4. [baribarjbark]+[barjbarkbari]+[barkbaribarj]+[baribarkbarj]+[barjbarib...

    Text Solution

    |

  5. If [veca vecb vecc]=1 then (bara.(barbxxbarc))/((barcxxbara).barb)+(...

    Text Solution

    |

  6. If bara,barb,barc are non-coplanar vectors and (bara+2barb+barc).(bara...

    Text Solution

    |

  7. If bara, barb, barc are the sides of a triangle ABC then [barabarb bar...

    Text Solution

    |

  8. If the vectors abari+barj+bark,bari+bbarj+bark,barI+barj+cbarK are cop...

    Text Solution

    |

  9. If the vectors (a, b, c), (b, c, a) and (c, a, b) are linealy dependen...

    Text Solution

    |

  10. The volume of a parallelopiped whose edges are represented by -12bari+...

    Text Solution

    |

  11. The volume of the rectangular box whose coterminal edges along axes of...

    Text Solution

    |

  12. If barx.bara=barx.barb=barx.barc=0 for some non-zero vector barx and a...

    Text Solution

    |

  13. The volume of the tetrahedron having the edges barI+2barj-bark,bari+ba...

    Text Solution

    |

  14. If bara,barb are non-zero and non-collinear vectors then [bara barb ba...

    Text Solution

    |

  15. Which of the following statement is not true

    Text Solution

    |

  16. If bara is perpendicular to barbxxbarc, then which of the following is...

    Text Solution

    |

  17. barixx(barjxxbark)+barjxx(barkxxbari)+barkxx(barixxbarj)=

    Text Solution

    |

  18. barixx(barixxbara)+barjxx(barjxxbara)+barkxx(barkxxbara)=

    Text Solution

    |

  19. If barb, barc are like unit vectors and baraxx (barbxx barc) = bar0 th...

    Text Solution

    |

  20. If bara, barb are two unit perpendicular vectors then baraxx (baraxx b...

    Text Solution

    |