∫x+1⼀x눀+2x+2dx等于多少.急!!!

2025-05-20 20:41:42
推荐回答(1个)
回答(1):

∫[(x+1)/(x²+2x+2)]dx
=∫(x+1)/[1+(x+1)²]dx
=½∫1/[1+(x+1)²]d[1+(x+1)²]
=½ln|1+(x+1)²| +C
=½ln(x²+2x+2) +C