Answer
$θ=\frac{\pi}{6}$
Work Step by Step
$\arctan(\frac{\sqrt{3}}{3})=\tan^{-1}(\frac{\sqrt{3}}{3})$
$\tan^{-1}(\frac{\sqrt{3}}{3})=θ$
$\tan θ = (\frac{\sqrt{3}}{3})$
$θ=\frac{\pi}{6}$
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