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Et punkt er gitt ved kartesiske koordinater $(\\var{x},\\var{y},\\var{z})$. Finn de sylindriske koordinatene $r$, $\\tan\\theta$ og $z$, og oppgi svaret på eksakt form.

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Hint: Numbas-syntaks for $\\sqrt{K}$ er sqrt(K) 

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$r$ = [[0]]

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$\\tan\\theta$  = [[1]]

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$z$ = [[2]]

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