Home
Class 12
MATHS
Let vec a=- hat i- hat k , vec b=- hat ...

Let ` vec a=- hat i- hat k , vec b=- hat i+ hat ja n d vec c= hat i+2 hat j+3 hat k` be three given vectors. If ` vec r` is a vector such that ` vec rxx vec b= vec cxx vec b` and `vec r dot vec a=0,` then find the value of ` vec rdot vec bdot`

Promotional Banner

Topper's Solved these Questions

  • TRIGONOMETRIC RATIOS FOR COMPOUND, MULTIPLE, SUB-MULTIPLE ANGLES, AND TRANSFORMATION FORMULAS

    CENGAGE PUBLICATION|Exercise Multiple Correct Answers Type|6 Videos
  • VECTORS TRIPLE PRODUCTS, RECIPROCAL SYSTEM OF VECTORS

    CENGAGE PUBLICATION|Exercise DPP 2.4|20 Videos

Similar Questions

Explore conceptually related problems

Let vec(a) = - hat(i) - hat(k) , vec(b) = - hat(i) +hat(j) and vec(c) = hat(i) + 2hat(j) + 3 hat(k) be three given vectors . If vec(r ) is a vector such that vec(r ) xx vec(b) = vec (c ) xx vec(b) and vec (r ) . vec (a ) = 0 then the value of vec(r ). vec(b) is -

Let vec a= hat i+2 hat j+ hat k , vec b= hat i- hat j+ hat ka n d vec c= hat i+ hat j- hat kdot Then find [vec a vec b vec c]

If vec a= hat i+ hat j+ hat k and vec b= hat i-2 hat j+ hat k , then find vector vec c such that vec a . vec c=2 and vec axx vec c= vec bdot

If vec a=x hat i+y hat j+z hat k , vec b=y hat i+z hat j+x hat k and vec c=z hat i+x hat j+y hat k , then vec axx( vec bxx vec c) is

if vec a= 5 hat i -hat j -3 hat k and vec b=hat i+3 hat j - 5 hat k , Find vec a . vec b =?

Find vec axx vec b ,\ if\ vec a=2 hat i+ hat k\ a n d\ vec b= hat i+ hat j+ hat kdot

Find vec adot vec b when: vec a= hat j- hat k\ a n d\ vec b=2 hat i+3 hat j-2 hat k

If vec a=3 hat i- hat j-4 hat k , vec b=2 hat i+4 hat j-3 hat k and vec c= hat i+2 hat j- hat k , find |3 vec a-2 hat b+4 hat c|dot

If vec a.hat i= vec a.( hat i+ hat j)= vec a.( hat i+ hat j+ hat k) , then find the unit vector vec a

Let vec a= hat i+4 hat j+2 hat k , vec b=3 hat i-2 hat j+7 hat ka n d vec c=2 hat i- hat j+4 hat kdot Find a vector vec d which is perpendicular to both vec a and vec b and vec c. vec d=15.

CENGAGE PUBLICATION-VECTOR ALGEBRA-All Questions
  1. If vec d= vec axx vec b+ vec bxx vec c+ vec cxx vec a is non-zero vec...

    Text Solution

    |

  2. The vector(s) which is/are coplanar with vectors hat i+ hat j+2 hat...

    Text Solution

    |

  3. Let vec a=- hat i- hat k , vec b=- hat i+ hat ja n d vec c= hat i+2 h...

    Text Solution

    |

  4. Let vec a , vec b ,a n d vec c be vectors forming right-hand traid. L...

    Text Solution

    |

  5. If the vectors vec a , vec b ,a n d vec c form the sidesB C ,C Aa n d...

    Text Solution

    |

  6. Find vec axx vec b ,\ if\ vec a=2 hat i+ hat k\ a n d\ vec b= hat i...

    Text Solution

    |

  7. Find the work done by the force F=3 hat i- hat j-2 hat k acrting on ...

    Text Solution

    |

  8. Prove that [[ vec a+ vec b, vec b+ vec c, vec c+ vec a]]=2[ [vec a, ve...

    Text Solution

    |

  9. find the angle between the vectors vec a= hat i+ hat j - hat k and ve...

    Text Solution

    |

  10. O A B C is regular tetrahedron in which D is the circumcentre of O...

    Text Solution

    |

  11. In the quadrilateral ABCD, the diagonals AC and BD are equal and perpe...

    Text Solution

    |

  12. If vece(1),vece(2),vece(3)and vecE(1),vecE(2),vecE(3) are two sets of ...

    Text Solution

    |

  13. Find the angle between the vectors vec a= hat i+hat j-hat k and vec b=...

    Text Solution

    |

  14. Given the vectors vec A , vec B ,a n d vec C form a triangle such tha...

    Text Solution

    |

  15. If vec a , vec ba n d vec c are three mutually perpendicular vecto...

    Text Solution

    |

  16. Let a three dimensional vector vec V satisfy the condition, 2 vec ...

    Text Solution

    |

  17. If vec a=3 hat i- hat j-4 hat k , vec b=2 hat i+4 hat j-3 hat k and ...

    Text Solution

    |

  18. Let vec O A= vec a , hat O B=10 vec a+2 vec ba n d vec O C= vec b ,w ...

    Text Solution

    |

  19. If vec a , vec b , vec c are unit vectors such that vec a. vec b=0= ...

    Text Solution

    |

  20. If vec x , vec y are two non-zero and non-collinear vectors satisfy...

    Text Solution

    |