$\lim_{} \frac{2\sqrt[]{n}+1}{\sqrt[]{n+2}+2 }$ 30/10/2021 Bởi Kennedy $\lim_{} \frac{2\sqrt[]{n}+1}{\sqrt[]{n+2}+2 }$
`\lim(2sqrtn+1)/(sqrt(n+2)+2)=lim(2+1/sqrtn)/(sqrt((sqrtn+2)/n)+2/sqrtn)=lim(2+1/sqrtn)/(sqrt(1+2/n)+2/sqrtn)=2/sqrt1=2` Bình luận
`\lim(2sqrtn+1)/(sqrt(n+2)+2)=lim(2+1/sqrtn)/(sqrt((sqrtn+2)/n)+2/sqrtn)=lim(2+1/sqrtn)/(sqrt(1+2/n)+2/sqrtn)=2/sqrt1=2`
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