Home
Class 12
MATHS
Find the consine of the angle B of the ...

Find the consine of the angle B of the triangle formed by joining the points A( 6 , 11, 2) , B ( 1 , - 1, 2) and C ( 1 , 2, 6) .

Text Solution

Verified by Experts

The correct Answer is:
`(36)/(65)`
Promotional Banner

Topper's Solved these Questions

  • INTRODUCTION TO THREE-DIMENSIONAL COORDINATE GEOMETRY

    CHHAYA PUBLICATION|Exercise Sample Questions for Competitive Exams ( A M . C . Q)|5 Videos

  • INTRODUCTION TO THREE-DIMENSIONAL COORDINATE GEOMETRY

    CHHAYA PUBLICATION|Exercise Sample Questions for Competitive Exams (B Integer Answer Type)|5 Videos

  • INTRODUCTION TO THREE-DIMENSIONAL COORDINATE GEOMETRY

    CHHAYA PUBLICATION|Exercise Very Short Answer Type Questions|60 Videos

  • INTEGRATION BY PARTS

    CHHAYA PUBLICATION|Exercise Assertion-Reason Type|2 Videos

  • LAWS OF INDICES

    CHHAYA PUBLICATION|Exercise Long Answer Type Questions|6 Videos

Similar Questions

Explore conceptually related problems

Find the vlaue of cos B for the triangle formed by joining the points A (6,11 , 2 ) , B (1 , - 1 , 2) and C (1 , 2 , 6 ) .

Find the value of cos B for the triangle formed by joining the points A(6,11,2),B(1,-1,2)and C(1,2,6).

The triangle formed by joining the points (3, -11, 5)-, (-1, -3, 4) and (-2, 1, -4) is-

Find the ortho -centre of the triangle formed by joining the points A(-2,-3),B(6,1)andC(1,6) .

Using determinant : find the area of the triangle formed by joining the points (6,2),(-3,4) and (4,-3)

Prove that the triangle formed by joining the points ( 1 , - 3, 1) , (0 , 1 , 2) , ( 2 , - 1, 3) is a right angled triangle.

Prove that the triangle formed by joining the points ( 2 , 3 , - 1) , ( 4 , 5 , 0) , ( 2 , 6 , 2) is and isosceles triangle .

Find the coordinates of the point of intersection of the medians of the triangle formed by joining the points (-1,-2),(8,4) and (5,7).

The centroid of the triangle formed by the points (1,2),(2,4)and (-3,6) is -

(b) (iii) Find the area of the triangle formed by joining the points (4,8),(-4,3) and (12,2) successively.

CHHAYA PUBLICATION-INTRODUCTION TO THREE-DIMENSIONAL COORDINATE GEOMETRY -Short Answer Type Questions
  1. Find the ratio in which the line segment joining A ( 2 , 4 , 5) and B ...

    Text Solution

    |

  2. Let A ( 2 , - 4 , - 3) and B ( - 4 , 2 , 3) be two given points if...

    Text Solution

    |

  3. Find the coordinates of the point in zx-plane which is equidistant fro...

    Text Solution

    |

  4. Find the coordinates of the points on z-axis which are at a distance s...

    Text Solution

    |

  5. A ( 1 , 3 , 0) , B ( 2 , 2 , 1) and C ( 5 , - 1 , 4) are the vertices ...

    Text Solution

    |

  6. IF the z-coordinates of a point C on the line - segment joining the ...

    Text Solution

    |

  7. If A ( 1 , y , z) lies on the line through the points b ( 3 , 2 , - 1...

    Text Solution

    |

  8. Find the coordinates of the centriod of the triangle whose vertices ...

    Text Solution

    |

  9. Using section formula, show that the points A (3 , 2 , -4) , b ( 5 , ...

    Text Solution

    |

  10. The line-segment joining the points A (1 , 2 , 3) and b ( - 3 , 4 ...

    Text Solution

    |

  11. Prove that the xy-plane divides the line-segment joining the points A(...

    Text Solution

    |

  12. If ( - 4 , 7 , 5) , ( 2 , - 6 , - 3) and ( 8 , 2 , - 5) are the co...

    Text Solution

    |

  13. Find the consine of the angle B of the triangle formed by joining t...

    Text Solution

    |

  14. If the point C( x , y , -14) lies on the line-segment overline(AB) ...

    Text Solution

    |

  15. Prove that the plane ax + by + cz + d = 0 divides the line-segment joi...

    Text Solution

    |

  16. The coordinates of the centroid of the triangle ABC are ( 1 , 1, 1) , ...

    Text Solution

    |

  17. The coordinates of the vertex A of the triangle ABC are ( - 3 , -4, ...

    Text Solution

    |

  18. Using section formula show tht the points A ( 9 , 8 , -10) , B ( 3 , 2...

    Text Solution

    |

  19. The coordinates of the centroid of the triangle formed by joining the ...

    Text Solution

    |

  20. Prove that the plane ax - by + cz + d = 0 divides the line-segment jo...

    Text Solution

    |