# Don't get nervous

Algebra Level pending

Let $$\bar u$$ denote the complex conjugate of the complex number $$u$$. If $$\bar u = \dfrac{e^{2ix} - 1}{e^{2ix} + 1}$$, state the value of $$u$$ in terms of $$\cot x$$.

Clarification: $$i = \sqrt{-1}$$.

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