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Inverse Trigonometric Functions

Question
CBSEENMA12032646

Find the principal values of the following

cot to the power of negative 1 end exponent open parentheses square root of 3 close parentheses


Solution

Let y = cot to the power of negative 1 end exponent open parentheses square root of 3 close parentheses    where 0 < y < straight pi
therefore    cot y=square root of 3     where 0 < y < straight pi
therefore space space space space space space space space space space space space space straight y equals straight pi over 6
therefore    requiredf principal value = straight pi over 6

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