S
snowangel1103


Tìm giới hạn dãy số
$1/ lim\frac{\sqrt{n^2+2n+4}+(3\sqrt{n}+1)(2\sqrt{n}+1)}{(\sqrt{n}-1)(2\sqrt{n}+3)+\sqrt{4n^2+n+1}}$
$2/ lim\frac{\sqrt{4n^2+3n+1}+n+2}{2n-3+\sqrt{n^2+1}}$
$3/ lim\frac{(\sqrt{n}+1)(3\sqrt{n}+4)}{2n+1}$
$1/ lim\frac{\sqrt{n^2+2n+4}+(3\sqrt{n}+1)(2\sqrt{n}+1)}{(\sqrt{n}-1)(2\sqrt{n}+3)+\sqrt{4n^2+n+1}}$
$2/ lim\frac{\sqrt{4n^2+3n+1}+n+2}{2n-3+\sqrt{n^2+1}}$
$3/ lim\frac{(\sqrt{n}+1)(3\sqrt{n}+4)}{2n+1}$
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