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If the extremities of a diagonal of a sq...

If the extremities of a diagonal of a square are (1,2,3) and (2,-3,5), then its side is of length

A

`sqrt2`

B

15

C

`sqrt15`

D

3

Text Solution

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The correct Answer is:
C
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AAKASH SERIES-3D-COORDINATE SYSTEM-EXERCISE-1
  1. The number of octants in which Z coordinate is positive is

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  2. Arrange the points : A (1,2,3), B(-1,2,-3), C(-1,-2,-3) and D(1,-2,-3)...

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  3. If the extremities of a diagonal of a square are (1,2,3) and (2,-3,5),...

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  4. The distance of point P (1,2,3) from the coordinate axes are

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  5. The perimeter of the triangle with vertices at (1, 0,0 ), (0,1,0 ) an...

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  6. The points (3,2,-4 ),( 5,4,-6 ) , (9,8,-10 )are

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  7. The point A(2,9,12), B(1,8,8),C(-2,11,8) and D(-1,12,12) form

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  8. The point A(5,-1,1), B(7,-4,7), C(1,-6,10), D(-1,-3,4) form

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  9. The 1^(st) point of trisection of segment joining (3,-1,2) and (9,5,2)

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  10. The ratio in which the line segmet joining the points (2,-4,3) and (-4...

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  11. XOZ plane divides the join of (2,3,1 ) and (6,7,1 ) in the ratio

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  12. Points A(3,2,4), B (33/8,28/5,38/5) and C(9,8,10) are given. The ratio...

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  13. The harmonic conjugate of (2,3,4) with respect to the points (3,-2,2),...

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  14. If the joining A(1,3,4) and B is divided by the point (12,3,5) in the ...

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  15. If the xicoordinate of 'p' on the join of Q(2,2,1) and R(5,2,-2) is 4,...

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  17. If (2,1,3), (3,2,5),(1,2,4) are the mid points of the sides BC,CA,AB, ...

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  18. In a Delta ABC the mid points of the sides AB, BC,CA are respectively ...

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  19. The point (2,-1,3) is the centroid of the triangle formed by the point...

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  20. If (2,k,-1) is the centroid of the triangle with vertices (2,-1,2) (1...

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