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If three points A,B and C have position ...

If three points A,B and C have position vectors (1,x,3),(3,4,7) and (y,-2,-5), respectively and if they are collinear, then find (x,y).

A

`2,-3`

B

`-2,3`

C

`2,3`

D

`-2,-3`

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A
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