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Question-63900




Question Number 63900 by Rio Michael last updated on 10/Jul/19
Commented by Rio Michael last updated on 10/Jul/19
Inthe Diagram above ABCD and CDEF are parrallelograms  which lie in thesame plane.  AB^→ =p , BC^→ =q  and CF^→ =r    by considering area show that  ∣p×(q+r)∣ = ∣p×q∣ + ∣p×r∣
IntheDiagramaboveABCDandCDEFareparrallelogramswhichlieinthesameplane.AB=p,BC=qandCF=rbyconsideringareashowthatp×(q+r)=p×q+p×r

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