Home
Class 12
MATHS
The lines (x-20/1=(y-3)/1=(z-4)/(-k and ...

The lines `(x-20/1=(y-3)/1=(z-4)/(-k_ and (x-10/k=(y-4)/2=(z-5)/1` are coplanar if (A) `k=3 or -3` (B) `k=0 or -1` (C) `k=1 or -1` (D) `k=0 or -3`

A

k = 3 or - 2

B

k = 0

C

k = 1 or - 1

D

k = 0 or -3

Text Solution

Verified by Experts

The correct Answer is:
D
Promotional Banner

Topper's Solved these Questions

  • THREE DIMENSIONAL GEOMETRY

    DISHA PUBLICATION|Exercise Exercise -2 : Concept Applicator|30 Videos
  • THREE DIMENSIONAL GEOMETRY

    DISHA PUBLICATION|Exercise Exercise -2 : Concept Applicator|30 Videos
  • STRAIGHT LINES AND PAIR OF STRAIGHT LINES

    DISHA PUBLICATION|Exercise EXERCISE 2: CONCEPT APPLICATOR|30 Videos
  • TRIGONOMETRIC FUNCTIONS

    DISHA PUBLICATION|Exercise EXERCISE-2|30 Videos

Similar Questions

Explore conceptually related problems

The lines (x-2)/1=(y-3)/1=(z-4)/(-k) and (x-1)/k=(y-4)/2=(z-5)/1 are coplanar if (A) k=3 or -3 (B) k=0 or -1 (C) k=1 or -1 (D) k=0 or -3

The lines (x-2)/1=(y-3)/2=(z-4)/(-2k) and (x-1)/k=(y-2)/3=(z-6)/1 are coplanar if

The lines (x-2)/1=(y-3)/1=(z-4)/(-k) and (x-1)/k=(y-4)/2=(z-5)/1 are coplanar if (A) k=0 or -1 (B) k=1 or -1 (C) k=0 or -3 (D) k=3or-3

The lines (x-2)/(1)=(y-3)/(1)=(z-4)/(-k) and (x-1)/(k)=(y-4)/(2)=(z-5)/(1) are coplanar, if

the lines (x-2)/(1)=(y-3)/(1)=(z-4)/(-k) and (x-1)/(k)=(y-4)/(1)=(z-5)/(1) are coplanar if k=?

The lines (x-2)/(1)=(y-3)/(1)=(z-4)/(-k) and (x-1)/(k)=(y-4)/(2)=(z-5)/(1) are coplanar if a.k=1 or -1 b.k=0 or -3ck=3 or -3d.k=0 or -1

DISHA PUBLICATION-THREE DIMENSIONAL GEOMETRY -Exercise -1 : Concept Builder (Topicwise)
  1. L1a n dL2 and two lines whose vector equations are L1: vec r=lambda((c...

    Text Solution

    |

  2. If vecr=(hati+2hatj+3hatk)+lamda(hati-hatj+hatk) and vecr=(hati+2hatj+...

    Text Solution

    |

  3. The lines (x-20/1=(y-3)/1=(z-4)/(-k and (x-10/k=(y-4)/2=(z-5)/1 are co...

    Text Solution

    |

  4. A unit vector parallel to the straight line (x-2)/3 =(3+y)/(-1)=(z-2)/...

    Text Solution

    |

  5. Find the equation of the two lines through the origin which intersects...

    Text Solution

    |

  6. If the line through the points A (k,1,-1) and B(2k,0,2) is perpendicul...

    Text Solution

    |

  7. The vector equation of the line (x-2)/(2)=(2y-5)/(-3),z=-1 is r=(2hati...

    Text Solution

    |

  8. If P(3,2,-4),Q(5,4,-6) and R(9,8,-10) are collinear, then R divides PQ...

    Text Solution

    |

  9. What is the value of n so that the angle between the lines having dire...

    Text Solution

    |

  10. The equation of motion of rockets are x=2t, y=-4t, z=4t where the time...

    Text Solution

    |

  11. The distance of point A(-2,3,1) from the line P Q through P(-3,5,2), w...

    Text Solution

    |

  12. Distance of the point P(vecc) from the line vecr=veca+lamdavecb is

    Text Solution

    |

  13. The length of the perpendicular drawn from the point (3,-1,11) to the...

    Text Solution

    |

  14. The point of intersection of the lines ( x + 1 )/( 3 ) = ( ...

    Text Solution

    |

  15. Find the equation of a line which passes through the point (1,1,1) ...

    Text Solution

    |

  16. The lines which intersect the skew lines y=m x ,z=c ; y=-m x ,z=-c ...

    Text Solution

    |

  17. Find the equations of the perpendicular from the point (1, 6, 3) to th...

    Text Solution

    |

  18. The length of the perpendicular drawn from the point (3,-1,11) to the...

    Text Solution

    |

  19. The foot of the perpendicular form (2,4,-1) to the line x +5 =(1)/...

    Text Solution

    |

  20. The line through hati+3hatj+2hatk and perpendicular to the lines vecr=...

    Text Solution

    |