VectorMedium
Question
If 
,
,
,
are position vectors of points P, Q, R, S such that − = 2( − ), then-
,,, are position vectors of points P, Q, R, S such that − = 2( − ), then-Options
A.PQ and RS bisect each other
B.PQ and PR bisect each other
C.PQ and RS trisect each other
D.QS and PR trisect each other
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