If \[P(3,\,4,\,5),\] \[Q(4,\,6,\,3),\] \[R(-1,\,2,\,4),\] \[S(1,\,0,\,5)\] then the projection of RS on PQ is [Orissa JEE 2002; RPET 2002]

If \[P(3,\,4,\,5),\] \[Q(4,\,6,\,3),\] \[R(-1,\,2,\,4),\] \[S(1,\,0,\,

1.	If \[P(3,\,4,\,5),\] \[Q(4,\,6,\,3),\] \[R(-1,\,2,\,4),\] \[S(1,\,0,\,5)\] then the projection of RS on PQ is [Orissa JEE 2002; RPET 2002]
A.	? 2/3
B.	? 4/3
C.	½
D.	2
Answer» C. ½

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If \[P(3,\,4,\,5),\] \[Q(4,\,6,\,3),\] \[R(-1,\,2,\,4),\] \[S(1,\,0,\,5)\] then the projection of RS on PQ is [Orissa JEE 2002; RPET 2002]

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