Home
Class 12
MATHS
If veca +vecb +vecc =vec0, |veca| =3 , ...

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

A

`(pi)/(6)`

B

`(2pi)/(3)`

C

`(5pi)/(3)`

D

`(pi)/(3)`

Text Solution

Verified by Experts

The correct Answer is:
4
Promotional Banner

Topper's Solved these Questions

  • VECTOR ALGEBRA

    AAKASH INSTITUTE|Exercise ASSIGNMENT (SECTION-B)|32 Videos

  • VECTOR ALGEBRA

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

  • VECTOR ALGEBRA

    AAKASH INSTITUTE|Exercise TRY YOURSELF|20 Videos

  • TRIGNOMETRIC FUNCTIONS

    AAKASH INSTITUTE|Exercise Section - J (Akash Challengers Question)|15 Videos

Similar Questions

Explore conceptually related problems

If veca +vecb +vecc=0, |veca|=3,|vecb|=5, |vecc|=7 , then find the angle between veca and vecb .

If veca +vecb +vecc=0, |veca|=3,|vecb|=5, |vecc|=7 , then find the angle between veca and vecb .

If veca+vecb+vecc=0, |veca|=3, |vecb|=5, |vecc|=7, then angle between veca and vecb is (A) pi/6 (B) (2pi)/3 (C) (5pi)/3 (D) pi/3

Three vectors veca,vecb,vecc are such that veca xx vecb=4(veca xx vecc) and |veca|=|vecb|= and |vecc|=1/4 . If the angle between vecb and vecc is pi/3 then vecb is

If veca, vecb and vecc are such that [veca vecb vecc] =1, vecc= lambda veca xx vecb , angle between veca and vecb is 2pi//3,|veca|=sqrt2 |vecb|=sqrt3 and |vecc|=1/sqrt3 then the angle between veca and vecb is

If |veca|=|vecb|=|vecc|and veca+vecb=vecc then find the angle between veca and vecb .

If |veca|+|vecb|=|vecc|and veca+vecb=vecc then find the angle between veca and vecb .

If vecA+ vecB = vecC and A+B+C=0 , then the angle between vecA and vecB is :

If veca,vecb, vecc are three vectors such that veca + vecb +vecc =vec0, |veca| =1 |vecb| =2, | vecc| =3 , then veca.vecb + vecb .vecc +vecc + vecc.veca is equal to

AAKASH INSTITUTE-VECTOR ALGEBRA-ASSIGNMENT (SECTION-A)
  1. If veca and vecb are unit vectors, then which of the following values ...

    Text Solution

    |

  2. If veca.veci=veca.(hati+hatj)=veca.(hati+hatj+hatk) . Then find the un...

    Text Solution

    |

  3. If veca +vecb +vecc =vec0, |veca| =3 , |vecb|=5 and |vecc| =7 , then ...

    Text Solution

    |

  4. The vector cosalpha.cosbetahati+cosalpha.sinbetahatj+sinalphahatk is a...

    Text Solution

    |

  5. If |veca|=|vecb|, then (veca+vecb).(veca-vecb) is equal to

    Text Solution

    |

  6. If veca and vecb are unit vectors inclined at an angle theta, then the...

    Text Solution

    |

  7. The projection of the vector hati+hatj+hatk along the vector of hatj i...

    Text Solution

    |

  8. If OACB is a parallelogram with vecOC=veca and vecAB=vecb, then vecOA ...

    Text Solution

    |

  9. If veca, vecb, vecc, vecd are the position vectors of points A, B, C a...

    Text Solution

    |

  10. If the vectors 3hati+lambdahatj+hatk and 2hati-hatj+8hatk are perpendi...

    Text Solution

    |

  11. The vectors 2hati+hatj-4hatk and ahati+bhatj+chatk are perpendicular, ...

    Text Solution

    |

  12. Let veca , vecb , vecc be three unit vectors such that |veca + vecb +...

    Text Solution

    |

  13. If theta is the angle between the vectors 2hati-2hatj+4hatk and 3hati+...

    Text Solution

    |

  14. If veca=2hati-3hatj-hatk and vecb=hati+4hatj-2hatk, then vecaxxvecb is

    Text Solution

    |

  15. If veca,vecb represent the diagonals of a rhombus, then

    Text Solution

    |

  16. If vecu=veca-vecb, vecv=veca+vecb and |veca|=|vecb|=2, then |vecuxxvec...

    Text Solution

    |

  17. If vecp=2veca-3vecb, vecq=veca-2b+vecc, vecr=-3veca+vecb+2vecc, veca,v...

    Text Solution

    |

  18. A vector vecc of magnitude sqrt(7) which is perpendicular to the vecto...

    Text Solution

    |

  19. If veca=hati+hatj,vecb=hati-hatj, then veca.vecb=

    Text Solution

    |

  20. The vectors veca=hati-2hatj+3hatk, vecb=-2hati+3hatj-4hatk and vec c=h...

    Text Solution

    |