Express \(\frac { 1 } { ( x - 1 ) ( x + 2 ) }\) in partial fractions [0pt]
[2]
In this question you must show detailed reasoning.
Hence find \(\int _ { 2 } ^ { 3 } \frac { 1 } { ( x - 1 ) ( x + 2 ) } \mathrm { d } x\).
Give your answer in its simplest form.