R, S, Q and P are the midpoints of OC, CB, BA and OA respectively.
OR = a, CS = b and OP = c.
...
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Mathematics, 07.11.2020 15:50 RayBanMan2017
R, S, Q and P are the midpoints of OC, CB, BA and OA respectively.
OR = a, CS = b and OP = c.
Show that RS is parallel to PQ
Note: Ignore arrows above vectors eg write RS, not RS
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