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given-a-3i-4j-2k-b-2i-j-3k-find-i-v-a-b-ii-v-into-position-vector-iii-unit-vector-of-v-




Question Number 33819 by mondodotto@gmail.com last updated on 25/Apr/18
given   a=3i−4j+2k                 b=−2i+j−3k  find   (i) v=a+b                     (ii)v into position vector             (iii)unit vector of v
$$\boldsymbol{\mathrm{given}}\:\:\:\boldsymbol{\mathrm{a}}=\mathrm{3}\boldsymbol{\mathrm{i}}−\mathrm{4}\boldsymbol{\mathrm{j}}+\mathrm{2}\boldsymbol{\mathrm{k}} \\ $$$$\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\boldsymbol{\mathrm{b}}=−\mathrm{2}\boldsymbol{\mathrm{i}}+\boldsymbol{\mathrm{j}}−\mathrm{3}\boldsymbol{\mathrm{k}} \\ $$$$\boldsymbol{\mathrm{find}}\:\:\:\left(\boldsymbol{\mathrm{i}}\right)\:\boldsymbol{\mathrm{v}}=\boldsymbol{\mathrm{a}}+\boldsymbol{\mathrm{b}} \\ $$$$\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\left(\boldsymbol{\mathrm{ii}}\right)\boldsymbol{\mathrm{v}}\:\boldsymbol{\mathrm{into}}\:\boldsymbol{\mathrm{position}}\:\boldsymbol{\mathrm{vector}} \\ $$$$\:\:\:\:\:\:\:\:\:\:\:\left(\boldsymbol{\mathrm{iii}}\right)\boldsymbol{\mathrm{unit}}\:\boldsymbol{\mathrm{vector}}\:\boldsymbol{\mathrm{of}}\:\boldsymbol{\mathrm{v}} \\ $$

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