Let \(f(x) = \frac{2x^2 + x + 8}{(2x - 1)(x^2 + 2)}\).

(i) Express \(f(x)\) in partial fractions.

(ii) Hence, showing full working, find \(\int_1^5 f(x) \, dx\), giving the answer in the form \(\ln c\), where \(c\) is an integer.