How should I solve this limits of a series which goes to infinity

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How can I determinate

$$\lim_{n\to \infty}{\frac{\sum_{i=1}^n\sinh\big(\frac{i}{n}\big)}{\sum_{i=1}^n\cosh\big(\frac{i}{n}\big)}}$$

I can't solve how should I solve this? Thank you. enter image description here

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Hint: Multiply numerator and denominator by $\frac1n$ and you'll recognize two Riemann sums.