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The distance of the point A(2,3,4) from ...

The distance of the point `A(2,3,4)` from X-axis is

A

5

B

`sqrt(13)`

C

`2sqrt(5)`

D

`5sqrt(2)`

Text Solution

Verified by Experts

The correct Answer is:
A
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Knowledge Check

  • The distance of the point P(a,b,c) from the z axis is

    A
    `sqrt(a^(2)+b^(2))`
    B
    `sqrt(a^(2)+c^(2))`
    C
    `sqrt(b^(2)+c^(2))`
    D
    `sqrt(a^(2)+b^(2)-c^(2))`

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    B
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    C
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    D
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  • The distance of the point (2,1,-1) from the plane x-2y+4z=9 is

    A
    `sqrt13/21`
    B
    `13/21`
    C
    `13/sqrt21`
    D
    `sqrt(13/21)`

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