Home
Class 11
MATHS
If a,b are vectors of lengths a,b respec...

If a,b are vectors of lengths a,b respectively then `((a)/(a^(2)) - (b)/(b^(2)))^(2)` =

A

`((bara+barb)/(ab))^(2)`

B

`((bara-barb)/(ab))^(2)`

C

`((bara+barb)/(ab))`

D

`((bara-barb)/(ab))`

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • DOT PRODUCT OF TWO VECTORS

    AAKASH SERIES|Exercise PRACTICE EXERCISE|57 Videos

  • DOT PRODUCT OF TWO VECTORS

    AAKASH SERIES|Exercise EXERCISE - I|30 Videos

  • DIRECTION COSINES AND RATIOS

    AAKASH SERIES|Exercise ADVANCED SUBJECTIVE TYPE QUESTIONS|8 Videos

  • ERRORS AND APPROXIMATIONS

    AAKASH SERIES|Exercise ADVANCED SUBJECTIVE TYPE QUESTION|15 Videos

Similar Questions

Explore conceptually related problems

If a,b, are two vectors of lengths 2,1 respectively and |a - b| = sqrt(3) then (a,b) =

If a,b,c are vector of length 4,4,5 respectively and a,b,c are perpendicular to b+ c , c + a, a+ b respectively, then |a + b + c| =

If a,b and c are vectors with magnitudes 2,3 and 4 respectively then the least upper bound of |a - b|^(2) + |b - c|^(2 )+ |c-a|^(2) among the given values is

If a, b and c are three vectors qith magnitudes 1, 1 and 2 respectively and axx(axxc)+b=0_(') then the angle between a and c is

(a - b)^2 - (a + b)^2 = ___

(a + b)^2 - (a - b)^2 =

If a and b are unit vectors such that |a xx b| = a.b , then |a + b|^(2) =

bar(a), bar(b), bar(c) are three vectors of which every pair is non-collinear. If the vectors bar(a)+2bar(b) and bar(b)+3bar(c) are collinear with bar(c) and bar(a) respectively, then bar(a)+2bar(b)+6bar(c)=

AAKASH SERIES-DOT PRODUCT OF TWO VECTORS-EXERCISE - II
  1. If bara,barb,barc " are three non zero vectors, and " bara.barb = bara...

    Text Solution

    |

  2. If the position vectors of A,B and C are respectively 2bari-barj+bark...

    Text Solution

    |

  3. If a,b are vectors of lengths a,b respectively then ((a)/(a^(2)) - (b)...

    Text Solution

    |

  4. If bara,barb " are noncollinear unit vectors, " abs(bara+barb) =sqrt 3...

    Text Solution

    |

  5. If bara,barb,barc " are three vectors such the " bara=barb+barc,(barb,...

    Text Solution

    |

  6. If bara,barb,barc " are unit vectors such that " (bara,barb) = pi/6, (...

    Text Solution

    |

  7. If a,b,c are vector of length 4,4,5 respectively and a,b,c are perpend...

    Text Solution

    |

  8. If 2 out of 3 vectors bara,barb,barc " are unit vectors, " bara+barb+b...

    Text Solution

    |

  9. The vectors bara,barb,barc " satisfy the condition " bara+barb+2barc=b...

    Text Solution

    |

  10. absbara=absbarb=absbarc=1,(bara,barb)=alpha,(barb,barc)=beta(barc,bara...

    Text Solution

    |

  11. If the angle between the vectors bari+bark and bari-barj+abark " is " ...

    Text Solution

    |

  12. If bara = (-4, 2,4) and barb = (sqrt2, - sqrt2, 0), " then " (2bara,(b...

    Text Solution

    |

  13. If bar(AB)=3bari - 4barj-bark, bar(BC) =4bari -barj+3bark are two side...

    Text Solution

    |

  14. If bare(1) = (1,1,1), bare(2) = (1,1,-1) and bara, barb " are two vect...

    Text Solution

    |

  15. If barA = bari+lambdabarj+bark , barB=bari+barj+bark " then for " abs(...

    Text Solution

    |

  16. if bar(a) + bar(b) + bar(c ) = bar(0), |bar(a)| = 3, |bar(b)| = 5, |b...

    Text Solution

    |

  17. If the unit vectors bara and barb " are inclined at an angle " 2theta ...

    Text Solution

    |

  18. Suppose bara,barb,barc " be three unit vectors such that " abs(bara-ba...

    Text Solution

    |

  19. P.T the smaller angle theta between any two diagonals of a cube is giv...

    Text Solution

    |

  20. In a unit cube. Find The angle between a diagonal of a cube and the di...

    Text Solution

    |