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Find the value of the following: $ \tan^{-1}(1)+\cos^{-1} \bigg(\large -\frac{1}{2} \bigg)+$$\sin^{-1} \bigg(\large-\frac{1}{2} \bigg) $

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Ans:

\[\frac{\pi}{4}+(\pi-\frac{\pi}{3})-\frac{\pi}{6}=\frac{3\pi}{4}\]
answered Feb 16, 2013 by rvidyagovindarajan_1
 

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