更新1:
打錯了 是 (x→∞)
lim(n→∞) √x^2-1=? 這題要怎麼解?謝謝?
回答 (2)
2016-05-15 6:07 am
lim(x→∞) √(x^2-1)
=lim(x→∞) √(x^2-1)*√(x^2-1)/√(x^2-1)
=lim(x→∞) (x^2-1)/√(x^2-1)
=0
=lim(x→∞) √(x^2-1)*√(x^2-1)/√(x^2-1)
=lim(x→∞) (x^2-1)/√(x^2-1)
=0
2016-05-05 12:29 pm
Sol
lim(n→∞)_√(x^2－1)
n與x無關
lim(n→∞)_√(x^2－1)＝√(x^2－1)
lim(n→∞)_√(x^2－1)
n與x無關
lim(n→∞)_√(x^2－1)＝√(x^2－1)
收錄日期: 2021-04-18 14:49:51
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20160505005111AAoZ7wB