∫x·lnxdx=?

2024-12-04 21:18:11
推荐回答(1个)
回答1:

∫xlnxdx
=1/2∫lnxd(x²)
=1/2x²lnx-1/2∫x²d(lnx)
=1/2x²lnx-∫xdx
=1/2x²lnx-1/4x²+C