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Home  >>  EAMCET  >>  Mathematics
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$\cos ^{-1}\bigg(\large\frac{-1}{2}\bigg)$$-2 \sin ^{-1} \bigg(\large\frac{1}{2}\bigg)$$+3 \cos ^{-1} \bigg(\large\frac{-1}{\sqrt 2}\bigg)$$-4 \tan ^{-1}(-1)=$

\[\begin {array} {1 1} (1)\;\frac{19 \pi}{12} & \quad (2)\;\frac{35 \pi}{12} \\ (3)\;\frac{47 \pi}{12} & \quad (4)\;\frac{43 \pi}{12} \end {array}\]

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