Home
Class 12
MATHS
let veca , vecb and vecc be three vector...

let `veca , vecb and vecc` be three vectors having magnitudes 1, 1 and 2, respectively, if `vecaxx(vecaxxvecc)+vecb=vec0, ` then the acute angle between `veca and vecc` is _______

A

`(pi)/(6)`

B

`(pi)/(3)`

C

`(pi)/(4)`

D

`(2pi)/(3)`

Text Solution

Verified by Experts

The correct Answer is:
1
Promotional Banner

Topper's Solved these Questions

  • VECTOR ALGEBRA

    AAKASH INSTITUTE ENGLISH|Exercise ASSIGNMENT (SECTION-C)|6 Videos

  • VECTOR ALGEBRA

    AAKASH INSTITUTE ENGLISH|Exercise ASSIGNMENT (SECTION-D) Comprehesion-I|3 Videos

  • VECTOR ALGEBRA

    AAKASH INSTITUTE ENGLISH|Exercise ASSIGNMENT (SECTION-A)|50 Videos

  • TRIGNOMETRIC FUNCTIONS

    AAKASH INSTITUTE ENGLISH|Exercise Section - J (Akash Challengers Question)|16 Videos

Similar Questions

Explore conceptually related problems

Let veca, vecb and vecc be three vectors having magnitudes 1,1 and 2 resectively. If vecaxx(vecaxxvecc)+vecb=vec0 then the acute angel between veca and vecc is

Let veca, vecb and vecc be three having magnitude 1,1 and 2 respectively such that vecaxx(vecaxxvecc)+vecb=vec0 , then the acute angle between veca and vecc is

If veca, vecb, vecc be three vectors of magnitude sqrt(3),1,2 such that vecaxx(vecaxxvecc)+3vecb=vec0 if theta angle between veca and vecc then cos^(2)theta is equal to

Let veca, vecb and vecc be the three vectors having magnitudes, 1,5 and 3, respectively, such that the angle between veca and vecb "is" theta and veca xx (veca xxvecb)=vecc . Then tan theta is equal to

If |vecc|=2 , |veca|=|vecb|=1 and vecaxx(vecaxxvecc)+vecb=vec0 then the acute angle between veca and vecc is (A) pi/6 (B) pi/4 (C) pi/3 (D) (2pi)/3

veca+vecb+vecc=vec0, |veca|=3, |vecb|=5,|vecc|=9 ,find the angle between veca and vecc .

Let veca,vecb and vecc be non-zero vectors such that no two are collinear and (vecaxxvecb)xxvecc=1/3|vecb||vecc|veca If theta is the acute angle between the vectors vecb and vecc then sin theta equals

vecA, vecB" and "vecC are three orthogonal vectors with magnitudes 3, 4 and 12 respectively. The value of |vecA-vecB+vecC| will be :-

let veca, vecb and vecc be three unit vectors such that veca xx (vecb xx vecc) =sqrt(3)/2 (vecb + vecc) . If vecb is not parallel to vecc , then the angle between veca and vecb is:

If veca +vecb +vecc =vec0, |veca| =3 , |vecb|=5 and |vecc| =7 , then the angle between veca and vecb is

AAKASH INSTITUTE ENGLISH-VECTOR ALGEBRA-ASSIGNMENT (SECTION-B)
  1. find the area of a parallelogram whose diagonals are veca=3hati+hatj-2...

    Text Solution

    |

  2. If a and b are unit vectors, then the vector defined as V=(a+b)times(a...

    Text Solution

    |

  3. Let veca=2hati+2hatj+hatk and vecc is a vector such that |vecaxxvecc|^...

    Text Solution

    |

  4. ABCD is a quadrilateral with vec(AB) = veca, vec(AD) = vecb and vec(A...

    Text Solution

    |

  5. A unit vector perpendicular to the plane passing through the points w...

    Text Solution

    |

  6. If veca , vecb, vecc are the position vectors of the vertices. A,B,C ...

    Text Solution

    |

  7. If vecpxxvecq=vecr and vecp.vecq=c, then vecq is

    Text Solution

    |

  8. If veca = (hati + hatj +hatk), veca. vecb= 1 and vecaxxvecb = hatj -ha...

    Text Solution

    |

  9. If veca,vecb,vecc be three vectors such that [veca vecb vec c]=4 then ...

    Text Solution

    |

  10. If vecr=x(vecaxxvecb)+y(vecbxxvecc)+z(veccxxveca) and [veca vecb v...

    Text Solution

    |

  11. If the verticles of a tetrahedron have the position vectors vec0, hati...

    Text Solution

    |

  12. If [(2veca+vecb)veccvecd]=lambda[vecaveccvecd]+mu[vecbveccvecd] then l...

    Text Solution

    |

  13. Unit vectors veca and vecb ar perpendicular , and unit vector vecc is ...

    Text Solution

    |

  14. The position vectors of the sides of triangle are 3hati+4hatj+5hatk, h...

    Text Solution

    |

  15. vecb and vecc are non- collinear if veca xx (vecb xx vecc) + (veca .ve...

    Text Solution

    |

  16. Let veca = 2hati + hatj + hatk, and vecb = hati+ hatj if c is a vecto...

    Text Solution

    |

  17. vecr=3hati+2hatj-5hatk, veca=2hati-hatj+hatk, vecb=hati+3hatj-2hatk, v...

    Text Solution

    |

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

    Text Solution

    |

  19. If veca bot vecb then vector vecv in terms of veca and vecb satisfying...

    Text Solution

    |

  20. If veca, vecb,vecc are unit vectors such that veca is perpendicular to...

    Text Solution

    |