Cos -1 x -cos-13 -6 is equal toA- -6B- 5 -6C- -6D- None

The correct option is B 5π/6 cos^ 1x{ cos ( 13π/6 ) } Use the result cos^ 1( x)=π cos^ 1x =π cos^ 1 ( cos ( 13π/6 ) )=π cos^ 1 ( cos ( 2π+π/ ...

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Inequalities of Integrals

cos -1 x -cos...

Question

$c o s^{- 1} x {- c o s (\frac{- 13 π}{6})}$ is equal to

$- \frac{π}{6}$

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$\frac{5 π}{6}$

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$\frac{π}{6}$

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None

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