Calculate (192 - 214)
arc(tan) 1 + arc(sin) (1/3) +arc(cos) (1/3).

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Solution

${tan}^{- 1} 1 + {sin}^{- 1} \frac{1}{3} + {cos}^{- 1} \frac{1}{3}$
$= {tan}^{- 1} 1 + ({sin}^{- 1} \frac{1}{3} + {cos}^{- 1} \frac{1}{3})$
$= \frac{π}{4} + \frac{π}{2} = \frac{3 π}{4}$ (Answer)

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