Can anyone help me finding the real and the imaginary part of the function $f(x)=\cot(x+i)$, where $i=\sqrt{-1}$?
EDIT: $x\in \mathbb R$.
Can anyone help me finding the real and the imaginary part of the function $f(x)=\cot(x+i)$, where $i=\sqrt{-1}$?
EDIT: $x\in \mathbb R$.