Home
Class 12
MATHS
If the d.c. 's (l, m, n) of two lines ar...

If the d.c. 's (l, m, n) of two lines are connected by the relations `l+m+n=0, 2lm-mn+2nl=0` then the d.c.'s of the two lines are

A

`(1//sqrt(6), 1//sqrt(6), -2//sqrt(6)), (1//sqrt(6), -2//sqrt(6), 1//sqrt(6))`

B

`(1//14, 2//14, 3//14), (1//26, 3//26, 4//36)`

C

`(1//sqrt(14), 2//sqrt(14), 3//sqrt(14)), (1//sqrt(26), 3//sqrt(26), 4//sqrt(26))`

D

none

Text Solution

Verified by Experts

Promotional Banner

Topper's Solved these Questions

  • DIRECTION COSINES AND DIRECTION RATIOS

    DIPTI PUBLICATION ( AP EAMET)|Exercise EXERCISE 2 SET -1|4 Videos

  • DIRECTION COSINES AND DIRECTION RATIOS

    DIPTI PUBLICATION ( AP EAMET)|Exercise EXERCISE 2 SET -2|3 Videos

  • DIRECTION COSINES AND DIRECTION RATIOS

    DIPTI PUBLICATION ( AP EAMET)|Exercise EXERCISE 2 SET -2|3 Videos

  • DIFFERENTIATION

    DIPTI PUBLICATION ( AP EAMET)|Exercise SET-4|6 Videos

  • EAMCET - 2016 AP

    DIPTI PUBLICATION ( AP EAMET)|Exercise Questions|80 Videos

Similar Questions

Explore conceptually related problems

If the d.c.'s (l, m, n) of two lines are connected by the relations l+5m+3n=0, 7l^(2)+5m^(2)-3n^(2)=0 then the d.c.'s of the two lines are

If the d.c.'s (l, m, n) of two lines are connected by the relations l+m-n=0, 12lm-mn-6 1n=0 then the angle between the lines is

If the d.c.'s (l, m,n) of two lines are connected by the relations 7l^(2)+5m^(2)-3n^(2)=0, l-5m+3n=0 then the d.c.'s of the two lines are

If the d.c.'s (l, m, n) of two lines are connected by the relations 3l+m+5n=0, 6mn-2nl+5lm=0 then the angle between the lines is

If the d.c's (l,m,n) of two lines are connected by the relations 3l+m+5n=0, 6mn - 2nl + 5lm=0 then the angle between the lines is

If the d.c.'s (l, m, n) of two lines are connected by the relations l+m+n=0 " and " 2mn+3ln-5lm=0 then the angle between the lines is

If the d.c's (l,m,n) of two lines are connected by the relations 7l^(2) + 5m^(2) - 3n^(2) = 0 , l - 5m + 3n = 0 then the d.c's of the two lines are

If the d.c.'s (l, m, n) of two lines are connected by the relations 2l+m+2n=0 " and " 3l^(2)+5m^(2)-11n^(2)=0 then the angle between the lines is

If the d.c's (l,m,n) of two lines are related as l + m + n = 0, 2lm - mn + 2nl = 0, then the angle between the lines is

DIPTI PUBLICATION ( AP EAMET)-DIRECTION COSINES AND DIRECTION RATIOS-EXERCISE 1
  1. If the line joining the points (2, 3, 4), (0, 1, 2) is perpendicular t...

    Text Solution

    |

  2. If O is the origin and P = (1, -2, 1) and OP bot OQ, then Q =

    Text Solution

    |

  3. If the d.c. 's (l, m, n) of two lines are connected by the relations l...

    Text Solution

    |

  4. If the d.c.'s (l, m, n) of two lines are connected by the relations l+...

    Text Solution

    |

  5. If the d.c.'s (l, m,n) of two lines are connected by the relations 7l^...

    Text Solution

    |

  6. If the d.c.'s (l, m, n) of two lines are connected by the relations l+...

    Text Solution

    |

  7. If the d.c.'s (l, m, n) of two lines are connected by the relations 3l...

    Text Solution

    |

  8. The direction ratios of two lines are given by a+b+c=0, 2ab+2ac-bc=0. ...

    Text Solution

    |

  9. If the d.c.'s (l, m, n) of two lines are connected by the relations l+...

    Text Solution

    |

  10. If the direction ratios of two lines are given by l+m+n=0, mn-2n+lm=0,...

    Text Solution

    |

  11. If the direction rations of two lines are given by 3lm-4ln+mn = 0 and ...

    Text Solution

    |

  12. The acute angle between the two lines whose direction ratios are given...

    Text Solution

    |

  13. Find the angle between the lines whose d.c's are related by l + m + n ...

    Text Solution

    |

  14. The angle between the lines whose direction cosines satisfy the equati...

    Text Solution

    |

  15. If the direction cosines of two lines are given by l+m+n=0 " and " l^(...

    Text Solution

    |

  16. If the d.c.'s (l, m, n) of two lines are connected by the relations 2l...

    Text Solution

    |

  17. P.T the smaller angle theta between any two diagonals of a cube is giv...

    Text Solution

    |

  18. The angle between a diagonal of a cube and the diagonal of a face of t...

    Text Solution

    |

  19. If a line makes angles alpha, beta, lambda,delta with the four diagon...

    Text Solution

    |

  20. If (6,-2,-3),(1,2,2) are d.r's of two lines then the d.c's of line bis...

    Text Solution

    |