LinAlg4.1.8

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Find the magnitude of the vector 7{\bar  {i}}-3{\bar  {j}}+5{\bar  {k}}\,

Given vector is 7{\bar  {i}}-3{\bar  {j}}+5{\bar  {k}}\,

magnitude of the given vector is {\sqrt  {(7)^{2}+(-3)^{2}+(5)^{2}}}={\sqrt  {49+9+25}}={\sqrt  {83}}\,


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