Home
Class 12
MATHS
If the line bar r = (5,5,2) + k (3,6,9...

If the line `bar r` = (5,5,2) + k (3,6,9) `k in R` and `bar` = (0,3,-1) + k (1,2,b), ` k in R` are parallel then b = ...... .

A

3

B

5

C

`-5`

D

2

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • THREE DIMENSIONAL GEOMETRY

    KUMAR PRAKASHAN|Exercise PRACTICE PAPER -11|16 Videos

  • THREE DIMENSIONAL GEOMETRY

    KUMAR PRAKASHAN|Exercise SOLUTION OF NCERT EXAMPLAR PROBLEMS (Short Answer Type Question)|49 Videos

  • RELATIONS AND FUNCTIONS

    KUMAR PRAKASHAN|Exercise Practice Paper - 1 (Section - D)|2 Videos

  • VECTOR ALGEBRA

    KUMAR PRAKASHAN|Exercise Practice Paper - 10 (Section-D)|2 Videos

Similar Questions

Explore conceptually related problems

The lines bar r = (-1,2,5) + k (-1,2,5), k in R and bar r = (-3,1,5) + k (-3,1,5), k in R ...........

The angle between the lines barr = (4, -3, 2) + k(2, 1, 2), k epsilon R and barr= (2, 0, 5) + k(6, 3, 2), k epsilon R is .......

The angle between the lines bar = (-3,5,-1) + k(1,2,1), k in R and bar r = (1,3,-2) + k (6,-3,0), k in R is ....

If the lines barr = (2, -3, 7) + k(2, a, 5), k epsilon R and barr = (1, 2, 3) + k(3, -a, a), k epsilon R are perpendicular to each other then a = ......

The image of the point (1, 2, 3) in the line barr = (6, 7, 7) + k (3, 2,-2), k epsilon R is (5, 8, a) then a = ….............

If the points A(k,2k) B(2k,3k) C(3,1) are collinear then k = ......... .

The equation of the line passing through hat i + 3 hat j + 2 hat k and prependiccular to the lines bar (r) = (1,2,-1) +lambda (2,1,1) and bar r = (2,6,1) + mu (1,2,3) is .........

If the vector equation of the line is barr = (1, -5,9) + k(2, 2, -1), k epsilon R then its cartesian equation is .........

((n),(r)) = (""^(n)P_(r))/(K), then K = ......

If R be a relation from A = {1, 2, 3,4) to B = (1,3,5) such that (a, b) in R iff a lt b , then R o R^-1 is

KUMAR PRAKASHAN-THREE DIMENSIONAL GEOMETRY-MULTIPLE CHOICE QUESTIONS (MCQs)
  1. The perpendicular distance of the point (3, -4, -5) from the line (x-2...

    Text Solution

    |

  2. The image of the point (1, 2, 3) in the line barr = (6, 7, 7) + k (3, ...

    Text Solution

    |

  3. If the line bar r = (5,5,2) + k (3,6,9) k in R and bar = (0,3,-1) + ...

    Text Solution

    |

  4. The angle between the lines bar = (-3,5,-1) + k(1,2,1), k in R and bar...

    Text Solution

    |

  5. The angle between the lines whose direction cosines are given by l + ...

    Text Solution

    |

  6. The cartesian equation of the line passing through (2,2,-3) and (1,3,5...

    Text Solution

    |

  7. The equation of the line passes through (2,-3,5) and makes equal with ...

    Text Solution

    |

  8. The angle between the lines whose direction cosines are l, m, n and m-...

    Text Solution

    |

  9. The vector equation of the line (3-x)/(3) = (2y - 3)/(5) = z/2 is .......

    Text Solution

    |

  10. The lines bar r = (-1,2,5) + k (-1,2,5), k in R and bar r = (-3,1,5) ...

    Text Solution

    |

  11. The vector equation of the line joining the pionts hat(i) - 2hat (j)+ ...

    Text Solution

    |

  12. If bar = hat i + hat j and bar b = 2 hat i - hat k then the intersect...

    Text Solution

    |

  13. The co-ordinats of a point on the line passing through the pionts (1,-...

    Text Solution

    |

  14. The equation of the line passing through hat i + 3 hat j + 2 hat k a...

    Text Solution

    |

  15. The shortest distance of the lines bar r1 = 4 hat i -3 hat j - hat k +...

    Text Solution

    |

  16. The direction cosines of the line drawn from P(-5,3,1) and Q(1,5,-2) i...

    Text Solution

    |

  17. The angle between the two diagonals of a cube is .....

    Text Solution

    |

  18. The angle between the two diagonals of a cube is .....

    Text Solution

    |

  19. A line makes the angle alpha, beta , gamma and delta with the diagonal...

    Text Solution

    |

  20. The edge of a cube is of length of a. The shortest distance between th...

    Text Solution

    |