Home
Class 12
MATHS
a.b and c are three vectors such that |a...

a.b and c are three vectors such that |a| =1, |b| = 2, |c| = 3 and b,c are perpendicular. If projection of both is the same as the projection of c on a, then |a - b + c| is equal to

A

`sqrt(2)`

B

`sqrt(7)`

C

`sqrt(14)`

D

`sqrt(21)`

Text Solution

Verified by Experts

The correct Answer is:
c
Promotional Banner

Topper's Solved these Questions

  • TS EAMCET 2015

    TS EAMCET PREVIOUS YEAR PAPERS|Exercise MATHEMATICS|79 Videos

  • TS EAMCET 2017

    TS EAMCET PREVIOUS YEAR PAPERS|Exercise MATHEMATICS|80 Videos

Similar Questions

Explore conceptually related problems

a, b, c are three vectors such that |a| = 1, |b| = 2, |c| = 3 and b, c are perpendicular. If projection of b on a is the same as the projection of c on a, then |a-b + c| =

a,b,c are three vectors such that |a|=1,|b|=2,|c |=3 and b.c =0 if the projection of b along a is equal to projecton of c along a then |2a+3b-3c|=

If a,b and c are three vectors such that |a|=1, |b|=2, |c|=3 and a.b=b.c=c.a=0, then |[a b c]| is equal to

If a,b,c are three vectors such that a + b + c = 0, |a| = 1, |b| = 2, |c| = 3 then a.b+ b.c + c.a =

If a, b, c are three unit vectors such that a + b + c = 0 , then a.b + b.c + c.a is equal to

If a, b and c are mutually perpendicular vectors of the same magnitude, then the cosine of the angle between a and a +b+c is

If a,b,c are unit vectors such that a + b + c = 0 then a.b + b.c + c + c . A=

TS EAMCET PREVIOUS YEAR PAPERS-TS EAMCET 2016-Mathematic
  1. ABCD is a parallelogram and P is the midpoint of the side AD. The line...

    Text Solution

    |

  2. The vectors 2 hat(i) - 2 hat(j) + hat(k), hat(i) - 2 hat(j) + 3 hat(k)...

    Text Solution

    |

  3. a.b and c are three vectors such that |a| =1, |b| = 2, |c| = 3 and b,c...

    Text Solution

    |

  4. If a,b,c are unit vectors satisfying the relation a + b+sqrt(3) c = 0,...

    Text Solution

    |

  5. a is perpendicular to both b and c . The angle between b and c is (2 p...

    Text Solution

    |

  6. If the average of the first n numbers in the sequence 148, 146, 144,…....

    Text Solution

    |

  7. The standard deviation of a,a + d,a + 2d……,a + 2nd is

    Text Solution

    |

  8. Two events A and B are such that P(A) = (1)/(2), P(A|B) = (1)/(4) and ...

    Text Solution

    |

  9. A five digit number is formed by the digits 1,2,3,4,5 with no digit be...

    Text Solution

    |

  10. When a pair of six faced fair dice are thrown, the probability that th...

    Text Solution

    |

  11. In a family with 4 children the probability that there are atleast two...

    Text Solution

    |

  12. On an average nine out of 10 ships that have departed at A reach B saf...

    Text Solution

    |

  13. If A(5,- 4) and B (7, 6) are points in a plane then the set of all poi...

    Text Solution

    |

  14. If the axes are rotated anticlock wise through an angles 90^(@), then ...

    Text Solution

    |

  15. The combined equation of the straight lines of the form y = kx + 1 (wh...

    Text Solution

    |

  16. A value of k each that the straight lines y - 3kx + 4 = 0 and (2k - 1)...

    Text Solution

    |

  17. The length of the segment of the straight line passing through (3,3) a...

    Text Solution

    |

  18. The equation of the pair of straight lines through the point (1,1) and...

    Text Solution

    |

  19. The combined equation of three sides of a triangle is (x^(2)-y^(2))(2...

    Text Solution

    |

  20. The piont where the line 4x - 3y + 7 = 0 touches the circle x^(2) + y^...

    Text Solution

    |