Find the limit of sequence (complex numbers)

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How do I find the limit of $$Z_n=n\sin{\frac{i}{n}}$$ I'd say it is 0, but the book says $i$.

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$Z_n= i\frac {\sin (i/n)} {i/n} \to i$.

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Hints:

$$\sin(ix) = i\cdot \sinh b\\\lim_{x\to0} \frac{\sinh(x)}{x} = 1$$