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Question Number 9230 by tawakalitu last updated on 24/Nov/16

Given that   a = 2i − 3j + k, b = 4i + j − 3k,  c = i − 3k  Find  (a∙b)c,  a(b×c)

$$\mathrm{Given}\:\mathrm{that}\: \\ $$$$\mathrm{a}\:=\:\mathrm{2i}\:−\:\mathrm{3j}\:+\:\mathrm{k},\:\mathrm{b}\:=\:\mathrm{4i}\:+\:\mathrm{j}\:−\:\mathrm{3k}, \\ $$$$\mathrm{c}\:=\:\mathrm{i}\:−\:\mathrm{3k} \\ $$$$\mathrm{Find}\:\:\left(\mathrm{a}\centerdot\mathrm{b}\right)\mathrm{c},\:\:\mathrm{a}\left(\mathrm{b}×\mathrm{c}\right) \\ $$

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