simple vector "a" test

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$a= \begin{pmatrix} 5\\ 5\\ \end{pmatrix}$

$||a||=?$

User101 Apr 17, 2016

edited by User101 Apr 17, 2016

User101 · Answer 1 · 2016-04-17T03:45:20

I meant:

$\vec{a}= \begin{pmatrix} 5\\ 5\\ \end{pmatrix}$

instead of:

$a= \begin{pmatrix} 5\\ 5\\ \end{pmatrix}$