$arg\,(5 - \sqrt 3 i) = $

  • A

    ${\tan ^{ - 1}}\frac{5}{{\sqrt 3 }}$

  • B

    ${\tan ^{ - 1}}\left( { - \,\frac{5}{{\sqrt 3 }}} \right)$

  • C

    ${\tan ^{ - 1}}\frac{{\sqrt 3 }}{5}$

  • D

    ${\tan ^{ - 1}}\left( { - \frac{{\sqrt 3 }}{5}} \right)$

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