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Question
Write the value of `cot^-1(-x)` for all `x in R` in terms of `cot^-1(x)`
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Solution
We know that
\[\cot^{- 1} \left( - x \right) = \pi - \cot^{- 1} \left( x \right)\] Therefore, the value of \[\cot^{- 1} \left( - x \right)\] for all `x in R` in terms of `cot^-1(x)` is `pi-cot^-1(x)`
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