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How do you evaluate ${tan}^{- 1} (\frac{1}{\sqrt{3}})$ $tan^-1(1/sqrt3)$ ?

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Aug 29, 2016

${tan}^{- 1} (\frac{1}{\sqrt{3}})$ $tan^-1(1/sqrt3)$ = ${tan}^{- 1}$ $tan^-1$ tan30 = 30

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