Home
Class 12
MATHS
If veca, vecb, vecc are unit vectors suc...

If `veca, vecb, vecc` are unit vectors such that
`veca+vecb+vecc=0`, find the value of
`veca.vecb+vecb.vecc+vecc.veca`.

Promotional Banner

Topper's Solved these Questions

  • MATRICES

    A N EXCEL PUBLICATION|Exercise QUESTION BANK|128 Videos

  • RELATIONS AND FUNCTIONS

    A N EXCEL PUBLICATION|Exercise QUESTION BANK|86 Videos

Similar Questions

Explore conceptually related problems

If veca, vecb, vecc are unit vectors then, veca.veca =_____

If veca,vecb,vecc are three vectors such that |veca|=5,|vecb|=12 and |vecc|=13 and veca+vecb+vecc=vec0 ,find the value of veca.vecb+vecb.vecc+vecc.veca .

If veca,vecb,vecc are three coplanar vectors, then [vecavecbvecc] is

Three vectors veca,vecb,"and" vecc satisfy the condition veca+vecb+vecc=vec0 . Evaluate the quantity mu=veca.vecb+vecb.vecc+vecc.veca . If |veca|=1,|vecb|=4 " and " |vecc|=2 .

veca,vecb,vecc are three non zero vectors such that vecaxxvecb=vecc,vecbxxvecc=veca .Prove that veca,vecb,vecc are mutually at right angle and |vecb|=1,|vecc|=|veca| .

A N EXCEL PUBLICATION-PROBABILITY-QUESTION BANK
  1. Find the area of a parallelogram whose adjacent sides are the vector 2...

    Text Solution

    |

  2. The angle between the vectors i+j and j+k is

    Text Solution

    |

  3. If veca, vecb, vecc are unit vectors such that veca+vecb+vecc=0, fin...

    Text Solution

    |

  4. The lines x-1=y=z is perpendicular to the line.....a)(x-2)/1=(y-1)/2=z...

    Text Solution

    |

  5. Find the shortest distance between the lines barr=i+2j+3k+lambda(i+j+k...

    Text Solution

    |

  6. Distance of the point(0,0,1) from the plane x+y+z=3 a)1/sqrt3units b)2...

    Text Solution

    |

  7. Find the equation of the plane through the line of intersection of the...

    Text Solution

    |

  8. Consider the linear programming problem: Maximum z=50x+40y subject...

    Text Solution

    |

  9. Consider the linear programming problem: Maximize Z=50x+40y Subject...

    Text Solution

    |

  10. Consider the linear programming problem: Maximize Z=50x+40y Subject...

    Text Solution

    |

  11. If A and B are two events such that AsubB and P(A)!=0 then P(A/B) is

    Text Solution

    |

  12. There are two identical bags. Bag | contains 3 red and 4 black balls w...

    Text Solution

    |

  13. There are two identical bags. Bag I contains 3 red and 4 black balls w...

    Text Solution

    |

  14. Consider the following probability distribution of a random variable X...

    Text Solution

    |

  15. Consider the following probability distribution of a random variable X...

    Text Solution

    |

  16. If A is a 2xx2 matrix and absA =1, then abs(2A) is

    Text Solution

    |

  17. Let A=[[3,1],[-1,2]] find A^-1

    Text Solution

    |

  18. sin^-1[sin((7pi)/6)] is equal to --

    Text Solution

    |

  19. Using the above result prove that tan^-1(frac(1)(2))+tan^-1(frac(1)(...

    Text Solution

    |

  20. If A^T=[[-2,3],[1,2]] and B^T=[[-1,0],[1,2]] then find (A+2B)^T

    Text Solution

    |