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The projection of the line segment joini...

The projection of the line segment joining the origin and the point P (5, 2, 4) on the line whose d.c.'s are `(2/7, -3/7, 6/7)` is

A

6x – 2y – 3z = 35

B

6x + 2y – 3z = 50

C

3x – 12y + 4z = 26

D

`2x + y +z = 3sqrt11 `

Text Solution

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The correct Answer is:
A
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The projection of the join of the points (3, 4, 2), (5, 1, 8) on the line whose d.c.'s are (2/7, -3/7, 6/7) is

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Knowledge Check

  • The projection of the join of the points (3,4,2), (5,1,8) on the line whose d.c's are ((2)/(7),(-3)/(7),(6)/(7)) is

    A
    7
    B
    `(46)/(13)`
    C
    `(42)/(13)`
    D
    `(38)/(13)`

  • The projection of the join of the two points (1,4,5), (6,7,2) on the line whose d.r's are (4,5,6) is

    A
    `(17)/(sqrt(77))`
    B
    `(7)/(6)`
    C
    21
    D
    `(7)/(9)`

  • The length of the projection of the line segment joining the points (3,4,5) and (4,6,3) on the line joining the points (-1,2,4) and (1,0,5) is

    A
    `4/3`
    B
    `5/4`
    C
    `2/3`
    D
    1

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    Find the mid point of the line segment joining (3,6) and (5,-2).

    Find the length of projection of the line segment joining the points (1,0,-1) and (-1,2,2) on the plane x+3y-5z=6 .

    Find the points of trisection of the line segment joining (2,3) and (11,6).

    The points of trisection of the line segment joining (-5, 2),(3,6) are

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