求极限lim(x→1) (x^1/2-1)/(x^1/3-1) 不会打根号.
人气:129 ℃ 时间:2020-05-03 23:01:19
解答
lim(x→1) (x^1/2-1)/(x^1/3-1)=lim(x→1) (x^1/2-1)* (x^1/2+1)/ (x^1/2+1)((x^1/3-1)=lim(x→1) (x-1)/ (x^1/2+1)(x^1/3-1)=lim(x→1) (x-1)*(x^2/3+x^1/3+1)/ (x^1/2+1)(x^1/3-1)*(x^2/3+x^1/3+1)/=lim(x→1...
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