lim(\(\sqrt{2n^2-n+1}-\sqrt{2n^2-3n+2}\)

lim (\(\dfrac{1}{n^2}+\dfrac{2}{n^2}+....+\dfrac{n-1}{n^2}\))

lim \(\dfrac{\dfrac{1}{2}+1+\dfrac{3}{2}+.....+\dfrac{n}{2}}{n^2+1}\)

lim \(\dfrac{\sqrt{n+1}-4}{\sqrt{n+1}+n}\)

lim \(\dfrac{\sqrt{2n+3}}{\sqrt{2n}+5}\)

lim (n+1) \(\sqrt{\dfrac{2n+2}{n^4+n^2-1}}\)

lim \(\dfrac{10}{\sqrt{n^4+n^2+1}}\)

lim \(\dfrac{-n^2+2n+1}{\sqrt{3n^4+2}}\)

Tính giới hạn : 

L = lim \(\dfrac{\left(n^2+2n\right)\left(2n^3+1\right)\left(4n+5\right)}{\left(n^4-3n-1\right)\left(3n^2-7\right)}\)

Tính giới hạn của L =lim \(\dfrac{\left(2n-n^3\right)\left(3n^2+1\right)}{\left(2n-1\right)\left(n^4-7\right)}\)