Home
Class 12
MATHS
lf vec a,vec b,vec c , vec a', vec b'...

lf `vec a,vec b,vec c , vec a', vec b',vec c'`, are two sets of non-coplanar vectors such that `veca .vec a' = vec b.vec b' =vec c.vec c' = 1` , then the two systems are called Reciprocal System of vectors and `bar a'=(vec bxx vec c)/([vec a vec b vec c]),vec b'=(vec c xxvec a)/([vec avec b vec c]) and vec c'=(vec a xxvec b)/([vec avec b vec c])` Find the value of `vec a xx vec a'+vec b xx vec b'+vec cxx vec c'`.

Promotional Banner

Topper's Solved these Questions

  • Product of three or more Vectors

    A DAS GUPTA|Exercise Exercise|28 Videos
  • Parabola

    A DAS GUPTA|Exercise EXERCISE|51 Videos
  • Product of two Vectors

    A DAS GUPTA|Exercise Exercise|48 Videos

Similar Questions

Explore conceptually related problems

lf vec a, vec b, vec c, vec a ', vec b', vec c ', are two sets of non-coplanar vectors such that veca .vec a' = vec b.vec b '= vec c.vec c '= 1, then the two systems are called Reciprocal System of vectors and bar a' = (vec bxx vec c) / ([vec a vec b vec c]), vec b '= (vec c xxvec a) / ([ vec avec b vec c]) and vec c '= (vec a xxvec b) / ([vec avec b vec c]) Find the value of vec a xx vec a' + vec b xx vec b '+ vec cxx vec c '.

[vec a+vec b,vec b+vec c,vec c+vec a]=2[vec a,vec b,vec c]

If vec a,vec b,vec c are vectors such that [vec avec bvec c]=4 then find the value of [(vec a xxvec b)(vec b xxvec c)(vec c xxvec a)]

[vec a + vec b, vec b + vec c, vec c + vec a] = 2 [vec a, vec b, vec c]

Let vec a, vec b and vec c, are non-coplianar vectors such that [(vec a xxvec b) * vec c] = | vec a || vec b || vec c | then

If vec a,vec b,vec c are three non coplanar vectors such that vec a.vec a*vec a=vec dvec b=vec d*vec c=0 then show that vec d is the null vector.

If vec a,vec b,vec c be any three non-zero non coplanar vectors and vectors vec p=(vec b xx vec c)/(vec a.vec b xx vec c),vec q=(vec c xx vec a)/(vec a.vec b xx vec c) vec r=(vec a xx vec b)/(veca.vec b xx vec c), then [vec p vec q vec r] equals -

If vec a xxvec b = vec b xxvec c = vec c xxvec a then vec a + vec b + vec c =

If vec a xxvec b = vec b xxvec c = vec c xxvec a then vec a + vec b + vec c =

If vec a xxvec b = vec b xxvec c = vec c xxvec a then vec a + vec b + vec c =

A DAS GUPTA-Product of three or more Vectors-Exercise
  1. Prove that ( vec a- vec b)dot{( vec b- vec c)xx( vec c- vec a)}=0

    Text Solution

    |

  2. Let vec a = a1 hat i + a2 hat j+ a3 hat k;vec b = b1 hat i+ b2 hat j+...

    Text Solution

    |

  3. lf vec a,vec b,vec c , vec a', vec b',vec c', are two sets of non-...

    Text Solution

    |

  4. Let vec(a),vec(b)andvec(c) be three non-coplanar vectors and let vec(p...

    Text Solution

    |

  5. If vec a,vec b,vec c are three vectors such that vec a+vec b+vec c=vec...

    Text Solution

    |

  6. Prove that hat ixx( vec axx hat i) hat jxx( vec axx hat j)+ hat kxx( ...

    Text Solution

    |

  7. If vecaxx(vecbxxvecc)+(veca*vecb)vecb=(4-2beta-sinalpha)vecb+(beta^2-...

    Text Solution

    |

  8. Let vec abe a unit vector and vec ba non-zero vector not parallel to v...

    Text Solution

    |

  9. For any vector vec a , prove that | vec axx hat i|^2+| vec axx hat j|...

    Text Solution

    |

  10. If vectors b ,ca n dd are not coplanar, then prove that vector ( ve...

    Text Solution

    |

  11. If vec a, vecb and vec c are three conterminuous edges of a parallelo...

    Text Solution

    |

  12. Let vec a , vec b ,a n d vec c be non-coplanar unit vectors, equal...

    Text Solution

    |

  13. If vec a=vec i + vec j + vec k, vec b=vec i - vec j + vec k and vec c=...

    Text Solution

    |

  14. If the volume of a parallelopiped, whose three coterminous edges are -...

    Text Solution

    |

  15. Find the volume of the parallelepiped whose coterminous edges are r...

    Text Solution

    |

  16. The points (3,6,9), (1,2,3), (2,3,4) and (4,6,lambda) are coplanar if ...

    Text Solution

    |

  17. If vec xdot vec a=0, vec xdot vec b=0a n d vec xdot vec c=0 for some ...

    Text Solution

    |

  18. Let veca,vecb and vecc be three vectors having magnitudes 1, 1 and 2 r...

    Text Solution

    |

  19. The scalar vec Adot( vec B+ vec C)xx( vec A+ vec B+ vec C) equals 0 b...

    Text Solution

    |

  20. Let a,b,c be distinct non zero numbers. If the vectors a vec i + a ve...

    Text Solution

    |