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If the points (3,2,4),(5,4,k),(9,8,-10) ...

If the points (3,2,4),(5,4,k),(9,8,-10) are collinear, then k=

A

2

B

3

C

6

D

`-2/3`

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The correct Answer is:
D
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AAKASH SERIES-3D-COORDINATE SYSTEM-PRACTICE EXERCISE
  1. The points D, E, F are the midpoints of the sides bar(BC), bar(CA),bar...

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  2. The fourth vertex of the parallelogram whose consecutive vertices are ...

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  3. If the points (3,2,4),(5,4,k),(9,8,-10) are collinear, then k=

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  4. The point on y-axis which is equidistant to (2,0,6), (-6,2,4) is

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  5. If A,B are the feet of the perpendicular from P (2,4,5) to the x-axis ...

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  6. A parallelopiped is formed by planes drawn through the points (2,3,5) ...

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  7. I : The points (-2,3,5 ), (1,,2,3 ),(7,0,-1 ) are collinear. II: The...

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  8. The point (2,1,5),(3,2,3),(4,0,4) form

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  9. The coplanar points (3,2,5) , (2,2,1),(-1,4,1 ),(0,5,5) form a

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  10. In DeltaABC, A(4,5,6), B(3,2,1), C(5,4,3). If p,q,r are lengths of the...

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  11. Centroid of triangle formed by feet of perpendicular from (-3,-6,-9) o...

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  12. If the origin is the centroid of the tetrahedron for which (2,-1,3),(-...

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  13. In the tetrahedrom ABCD, A=(1,2,-3) and G=(-3,4,5) is cntroid of tetra...

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  14. The circumcentre of the triangle formed by the points (1,2,3), (2,3,1)...

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  15. Statement-I : The coordinates of a point equidistant from the four poi...

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  16. The incentre of the triangle formed by (0,0,0),(3,0,0),(0,4,0) is

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  17. The centroid of the triangle formed by the points (2,-1,1),(1,-3,-5),(...

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  18. A (3,4,5), C(-1,6,1) are the vetrices of a triangle then Statement-I...

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  19. The distance between the circumcentre and the orthocentre of the trian...

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  20. If the Internal bisector of angleAOB where 0=(0,0,0), A =(3,4,12), B=(...

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