1. Tìm lim (10n + 3) / (3n – 15) 2. Tìm lim (2n + 1) / (n + 1) 05/11/2021 Bởi Everleigh 1. Tìm lim (10n + 3) / (3n – 15) 2. Tìm lim (2n + 1) / (n + 1)
1) $\,\,\,\,\lim \dfrac{10n+3}{3n-15}$ $=\lim \dfrac{10+\dfrac{3}{n}}{3-\dfrac{15}{n}}$ $=\dfrac{10}{3}$ 2) $\,\,\,\,\lim \dfrac{2n+1}{n+1}$ $=\lim \dfrac{2+\dfrac{1}{n}}{1+\dfrac{1}{n}}$ $=\dfrac{2}{1}$ $=2$ Bình luận
1. `lim (10n + 3) / (3n – 15)` `=lim(10+3/n)/(3-15/n)` `=(10+0)/(3-0)=10/3` 2. `lim (2n + 1) / (n + 1)` `=lim(2+1/n)/(1+1/n)` `=(2+0)/(1+0)=2` Bình luận
1)
$\,\,\,\,\lim \dfrac{10n+3}{3n-15}$
$=\lim \dfrac{10+\dfrac{3}{n}}{3-\dfrac{15}{n}}$
$=\dfrac{10}{3}$
2)
$\,\,\,\,\lim \dfrac{2n+1}{n+1}$
$=\lim \dfrac{2+\dfrac{1}{n}}{1+\dfrac{1}{n}}$
$=\dfrac{2}{1}$
$=2$
1.
`lim (10n + 3) / (3n – 15)`
`=lim(10+3/n)/(3-15/n)`
`=(10+0)/(3-0)=10/3`
2.
`lim (2n + 1) / (n + 1)`
`=lim(2+1/n)/(1+1/n)`
`=(2+0)/(1+0)=2`