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The value of cos^(-1)(cos'(14pi)/(3)) i...

The value of `cos^(-1)(cos'(14pi)/(3))` is `"…….."`

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`cos frac{14 pi}{3}=cos(4pi+frac{2 pi}{3})`
`cos frac{14 pi}{3}=cos frac{2pi}{3}`
`cos^(-1)cos(frac{14 pi}{3})=cos^(-1)(cos frac{2 pi}{3})`
`=frac{2 pi}{3}`
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