Write the value of $cos^{- 1} (cos 154 0^{\circ})$ .

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Write the value of

cos^{- 1} (cos 154 0^{\circ})

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Text solutionVerified

given,

cos^{- 1} (cos 1540^{\circ})

= cos^{- 1} (cos (360^{\circ} \times 4 + 100^{\circ}))

∵ cos (36 0^{o} \times 4 + x^{o}) = cos x^{o}

= cos^{- 1} (cos 100^{\circ})

= 100^{\circ}

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Question Text	Write the value of $cos^{- 1} (cos 154 0^{\circ})$ .
Answer Type	Text solution:1
Upvotes	150