求不定积分∫tan根号x ⼀根号x dx

2026-05-19 16:57:32
推荐回答(1个)
回答1:

∫tan根号x /根号x dx
=2∫tan根号xd(根号x)
=2∫sin根号x/cos根号xd(根号x)
=-2∫d(cos根号x)/cos根号x
=-2ln|cos根号x|+C