kgracie77 kgracie77
  • 26-04-2018
  • Mathematics
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HELP FAST PLEASE
Find u*v, if u=13j and v=i+3j

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jdoe0001 jdoe0001
  • 26-04-2018
[tex]\bf \begin{cases} u=13j\implies 0i+13j\implies \ \textless \ 0,13\ \textgreater \ \\ v=i+3j\implies 1i+3j\implies \ \textless \ 1,3\ \textgreater \ \end{cases} \\\\\\ \ \textless \ 0,13\ \textgreater \ \cdot \ \textless \ 1,3\ \textgreater \ \implies (0\cdot 1)+(13\cdot 3)\implies 39[/tex]
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