F.4 m2 about limit~3
回答 (2)
2010-04-12 2:49 am
✔ 最佳答案
lim x→∞ [√(x^2 + x)－2√(x^2 + 2x) +x]
=lim x→∞ [√(x^2+x+1/4)－2√(x^2 + 2x+1) +x]
=lim x→∞ [(x+1/2)－2(x+1)+x]
=lim x→∞ [－3/2]
=－3/2
2010-04-13 5:17 am
收錄日期: 2021-04-13 17:11:20
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20100411000051KK01032