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Mathematics
Mathematics
Problem
A particle moves from point
P
(
2
,
−
1
,
4
)
P(2,-1,4)
P
(
2
,
−
1
,
4
)
to point
Q
(
5
,
3
,
1
)
Q(5,3,1)
Q
(
5
,
3
,
1
)
. Calculate the unit vector along the displacement
P
Q
→
\overrightarrow{PQ}
P
Q
.
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