Home
Class 12
MATHS
Find the direction cosines of the sides ...

Find the direction cosines of the sides of the triangle whose vertices are (3, 5, – 4), (– 1, 1, 2) and (– 5, – 5, – 2).

Promotional Banner

Topper's Solved these Questions

  • Three Dimensional Geometry

    MODERN PUBLICATION|Exercise EXERCISE|491 Videos

  • RELATIONS AND FUNCTIONS

    MODERN PUBLICATION|Exercise EXAMPLE|13 Videos

  • UNIT TEST-4

    MODERN PUBLICATION|Exercise EXERCISE|13 Videos

Similar Questions

Explore conceptually related problems

Find the area of the triangle whose vertices are (3, 8), (– 4, 2) and (5, 1).

Find the equations of the sides of the triangle whose vertices are (- 1, 8), (4, - 2) and (- 5,- 3).

Using vectors find the area of the triangle whose vertices arc (0, 1 , 2), (2, 1, 5) and (1 , 5, 2).

Using vectors find the area of the triangle whose vertices are (1 , 1 , -1 ), (2, 3, 1) and (I, 3, 5).

Find the angles of the triangle whose vertices are (0,-1,-2), B(3,1,4) and C(5,7,1).

Find the co-ordinates of the circumcentre of the triangle whose vertices are : (1, 2) , (3, - 4) and (5,-6).

Find the area of the triangle whose vertices are :- (- 5, -1), (3,- 5), (5, 2).

Find the area of a triangle whose vertices are ( 1, -1), (- 4, 6) and (-3, -5).

Write the area of the triangle whose vertices are : (1, - 1), (2, 4) and (- 3, 5) :

MODERN PUBLICATION-Three Dimensional Geometry-EXERCISE
  1. If a line has the direction ratios –18, 12, – 4, then what are its dir...

    Text Solution

    |

  2. Show that the points (2, 3, 4), (– 1, – 2, 1), (5, 8, 7) are collinear...

    Text Solution

    |

  3. Find the direction cosines of the sides of the triangle whose vertices...

    Text Solution

    |

  4. show that the three lines with direction cosines <12/13,-3/13,-4/13>, ...

    Text Solution

    |

  5. Show that the line through the points (1, – 1, 2), (3, 4, – 2) is perp...

    Text Solution

    |

  6. Show that the line through the points : (4,7,8), (2,3,4) is parallel t...

    Text Solution

    |

  7. Find the equation of the line which passes through the point (1, 2, 3)...

    Text Solution

    |

  8. Find the equation of the line in vector and in cartesian form that pas...

    Text Solution

    |

  9. Find the cartesian equation of the line which passes through the point...

    Text Solution

    |

  10. The cartesian equation of a line is (x-5)/3 = (y+4)/7 = (z-6)/2. Write...

    Text Solution

    |

  11. Find the vector and the cartesian equations of the lines that passes t...

    Text Solution

    |

  12. Find the vector and the cartesian equations of the line that passes th...

    Text Solution

    |

  13. Find the angle between the following pair of lines: vecr = 2hati-5hatj...

    Text Solution

    |

  14. Find the angle between the following pair of lines: vecr = 3hati+hatj-...

    Text Solution

    |

  15. Find the angle between the following pairs of lines : (x-2)/2=(y-1)/5=...

    Text Solution

    |

  16. Find the angle between the lines x/2=y/2=z/1 and [x-5]/4=[y-2]/1=[z-3]...

    Text Solution

    |

  17. Find the value of p so that the lines : l1:(1-x)/3=(7y-14)/(2p)=(z-3)/...

    Text Solution

    |

  18. Show that the lines (x-5)/7 = (y+2)/-5 = z/1 and x/1 = y/2 = z/3 are p...

    Text Solution

    |

  19. Find the shortest distance between the lines vecr = (hati + 2hatj+hatk...

    Text Solution

    |

  20. Find the shortest distance between the lines ((x+1)/7=(y+1)/-6=(z+1)/1...

    Text Solution

    |