Home
Class 12
MATHS
bar(a),bar(b) and bar( c ) are unit vect...

`bar(a),bar(b)` and `bar( c )` are unit vectors. The value of `|bar(a)-bar(b)|^(2)+|bar(b)-bar( c )|^(2)+|bar( c )-bar(a)|^(2)` is not expected ………………

A

4

B

9

C

8

D

6

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • VECTOR ALGEBRA

    KUMAR PRAKASHAN|Exercise Practice Paper - 10 (Section-A)|6 Videos

  • VECTOR ALGEBRA

    KUMAR PRAKASHAN|Exercise Practice Paper - 10 (Section-B)|4 Videos

  • VECTOR ALGEBRA

    KUMAR PRAKASHAN|Exercise Solutions of NCERT Exemplar Problems (True/False)|5 Videos

  • THREE DIMENSIONAL GEOMETRY

    KUMAR PRAKASHAN|Exercise PRACTICE PAPER -11|16 Videos

Similar Questions

Explore conceptually related problems

If the unit vectors bar(a),bar(b) and bar( c ) are coplanar then [2bar(a)-bar(b),2bar(b)-bar( c ),2bar( c )-bar(a)] = ……

bar(a),bar(b) and bar( c ) are non zero vectors. |(bar(a)xx bar(b))*bar( c )|=|bar(a)||bar(b)||bar( c )| then ……………

bar(a),bar(b) and bar( c ) are three unit vectors. bar(a)_|_bar(b) and bar(a)||bar( c ) then bar(a)xx(bar(b)xx bar( c )) = …………….

If bar(a),bar(b) and bar( c ) are unit vectors such that bar(a)+bar(b)+bar( c )=bar(0) , then the value of bar(a).bar(b)+bar(b).bar( c )+bar( c ).bar(a)=…………

If |bar(a)xx bar(b)|^(2)+|bar(a).bar(b)|^(2)=144 and |bar(a)|=4 , then |bar(b)| is equal to ……………….

If bar(a),bar(b) and bar( c ) are not coplanar then (bar(a)+bar(b)+bar( c ))*[(bar(a)+bar(b)) times (bar( a )+bar(c))] = ……………

If bar(a),bar(b),bar( c ) and bar(d) are coplanar vectors then (bar(a)xx bar(b))xx(bar( c )xx bar(d)) = …………..

bar(a) and bar(b) are unit vectors. |bar(a)+bar(b)|=sqrt(3) then the value of (3bar(a)-4bar(b)).(2bar(a)+5bar(b)) = ……………

If |bar(a)|=10,|bar(b)|=2 and bar(a).bar(b)=12 then the value of |bar(a)xx bar(b)| is …………

For any vector bar(a) , the value of (bar(a)xx i)^(2)+(bar(a)xx j)^(2)+(bar(a)xx bar(k))^(2) is ………..

KUMAR PRAKASHAN-VECTOR ALGEBRA -Solutions of NCERT Exemplar Problems (Multiple Choice Questions (MCQs) )
  1. The unit vector bar(a) and bar(b) are perpendicualr to each other. The...

    Text Solution

    |

  2. Vector bar(a)=6hati-3hatj,bar(b)=2hati-6hatj and bar( c )=-2hati+21hat...

    Text Solution

    |

  3. bar(a),bar(b) and bar( c ) are unit vectors. The value of |bar(a)-bar(...

    Text Solution

    |

  4. If bar(a),bar(b) and bar( c ) are perpendicualr to bar(b)+bar( c ),bar...

    Text Solution

    |

  5. bar(a) and bar(b) are unit vectors. |bar(a)+bar(b)|=sqrt(3) then the v...

    Text Solution

    |

  6. DeltaABC is an equilateral triangle. Its side is l. Any point P lies o...

    Text Solution

    |

  7. vec(a)=2hati+hatj+hatk and vec(b)=hati-hatj-hatk are the adjacent side...

    Text Solution

    |

  8. The position vectors of four points A, B, C and D in the plane are vec...

    Text Solution

    |

  9. If vec(alpha)=(1)/(a)hati+(4)/(b)hatj+b hatk and vec(beta)=b hati+a ha...

    Text Solution

    |

  10. The unit vectors vec(a),vec(b) and vec( c ) are not coplanar. If vec(a...

    Text Solution

    |

  11. If vec(x)+vec(y)+vec(z)=0 and |vec(x)|=|vec(y)|=|vec(z)|=2 If the angl...

    Text Solution

    |

  12. vec(a)=2hati-hatj+hatk,vec(b)=hati+2hatj-hatk,vec( c )=hati+hatj-2hatk...

    Text Solution

    |

  13. vec(a)=hati+hatj+sqrt(2)hatk,vec(b)=b(1)hati+b(2)hatj+sqrt(2)hatk and ...

    Text Solution

    |

  14. vec(a)=2hati+lambda(1)hatj+3hatk,vec(b)=4hati+(3-lambda(2))hatj+6hatk ...

    Text Solution

    |

  15. squareABCD is a parallelogram vec(AB)=bar(q),vec(AD)=bar(p),angleBAC i...

    Text Solution

    |

  16. The position vectors of A, B and C are 2hati-hatj+hatk,hati-3hatj-5hat...

    Text Solution

    |

  17. A particle is acted upon constant forces vec(F)(1)=4hati+hatj-3hatk an...

    Text Solution

    |

  18. Let vec(u),vec(v) and vec(w) be such that |vec(u)|=1,|vec(v)|=2,|vec(w...

    Text Solution

    |

  19. The centroid of DeltaABC is G. The angle between vec(GB) and vec(GC) i...

    Text Solution

    |

  20. The area of the parallelogram whose diagonals are hatj+hatk and hati+h...

    Text Solution

    |