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Home  >>  CBSE XII  >>  Math  >>  Model Papers

Write the principal value of \( \cos^{-1} \bigg( -\large\frac{\sqrt 3}{2} \bigg). \)

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Ans:

\[\pi-\frac{\pi}{6}=\frac{5\pi}{6}\]
answered Feb 14, 2013 by rvidyagovindarajan_1
 
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