求不定积分.∫【 u^(1/2)+1】(u-1) du:
问题描述:
求不定积分.∫【 u^(1/2)+1】(u-1) du:
答
∫【 u^(1/2)+1】(u-1) du
=∫[ u^(3/2)+u-u^(1/2)-1)] du
=∫ u^(3/2)du+∫udu-∫u^(1/2)du-∫1 du
=2/5u^(5/2)+1/2u^2-2/3u^(3/2)-u+C