f(x) = ln(x) can be integrated using the following formula for integration by parts:

∫udv = uv - ∫vdu

In this case, let u be ln(x), and v be x. This means that du would  be (1/x)dx, and dv would be dx.

So, ∫ln(x)dx = ln(x)*x - ∫(x/x)dx, or x*ln(x) - x + C
spam fails_task lang_mismatch pii not_appropriate hate_speech sexual_content quality toxicity humor helpfulness creativity violence