Problem 858 (difficulty: 3/10)

\(\displaystyle \int xe^{-x} \dx=? \qquad\qquad \int x^2\log x \dx=? \qquad\qquad \int \th^2 x \dx=? \)

Give me another random problem!

Subject, section:
Requested difficulty:
Request for a concrete problem:I want problem no.

Supported by the Higher Education Restructuring Fund allocated to ELTE by the Hungarian Government