If three points A, B and C have position vectors \[(1,\,x,\,3),\,\,(3,\,4,\,7)\] and \[ap+bq+cr=1\] respectively and if they are collinear, then \[(x,\,y)=\] [EAMCET 2002]

If three points A, B and C have position vectors \[(1,\,x,\,3),\,\,(3,

1.	If three points A, B and C have position vectors \[(1,\,x,\,3),\,\,(3,\,4,\,7)\] and \[ap+bq+cr=1\] respectively and if they are collinear, then \[(x,\,y)=\] [EAMCET 2002]
A.	(2, ? 3)
B.	(? 2, 3)
C.	(2, 3)
D.	(? 2, ? 3)
Answer» B. (? 2, 3)

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If three points A, B and C have position vectors \[(1,\,x,\,3),\,\,(3,\,4,\,7)\] and \[ap+bq+cr=1\] respectively and if they are collinear, then \[(x,\,y)=\] [EAMCET 2002]

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