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If the centroid of the triangle formed b...

If the centroid of the triangle formed by `(a,1,3) ,(-2,b,-5) and (4,7,c) ` is the origin then (a,b,c) =

A

(2,8,2)

B

(2,8,-2)

C

(-2,-8,2)

D

(2,-8,2)

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The correct Answer is:
C
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DIPTI PUBLICATION ( AP EAMET)-COORDINATE SYSTEM (3D)-EXERCISE 1
  1. If the origin is the centroid of the triangle for which (2,-3,5),(-1,...

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  2. If (2,1,1) is the centroid of the triangle for which (3,2,-1) ,(2,-2,5...

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  3. If the centroid of the triangle formed by (a,1,3) ,(-2,b,-5) and (4,7,...

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  4. The centroid of the tetrahedron formed by the points (3,2,5) ,(-3,8,-5...

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

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  6. If (2,3,4) is the centroid of the tetrahedron for which (2,3,-1) ,(3,0...

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  7. The centroid of the tetrahedron ABCD divides the line joining the vert...

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  8. The centroid of the triangle formed by the points (1,2,3),(3,-1,5),(4,...

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  9. The centroid of the triangle formed by the points (1,2,3),(2,3,1),(3,1...

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

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  11. The centroid of the triangle formed by the points (2,1,5),(3,2,3),(4,0...

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  12. If the orthocentre and the circucentre of are (-3,5,2) ,(6,2,5) then i...

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  13. If the orthocentre and the circucentre of a triangle are (-3,5,1),(3,3...

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

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  15. A : If (2,1,-3) , (-2,3,4) , (1,2,2) are the midpoints of bar(BC) ,ba...

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  16. The points D,E,F are the midpoints of the sides bar(BC),bar(CA),bar(AB...

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  17. D(2,1,0) ,E(2,0,0),F(0,1,0) are midpoints of the sides BC,CA,AB of De...

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  18. In DeltaABC the mid-point of the sides AB,BC and CA are respectively (...

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

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  20. If (5,7,10),(1,9,6) are the extremities of the hypotenuse of a right a...

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