$$\lim_{n\rightarrow\infty}\ \frac{n+5}{2n^2}$$  คือข้อใด

$$\lim_{n\rightarrow\infty}\ \frac{2n+n^2+n^5}{n^2-3n^5}$$  

$$\lim_{n\rightarrow\infty}\ \frac{n+n^2-n^3}{n^2-n^4+n^5}$$  

$$\lim_{n\rightarrow\infty}\ \frac{2^n+6^n}{5^n+2^{2n}}$$  

$$\lim_{n\rightarrow\infty}\ \frac{6^{n+}3^n}{3^{2n}-7}$$  

$$\lim_{n\rightarrow\infty}\ \frac{5^{n-1}+3^n}{4^n+5^n}$$  

$$\lim_{n\rightarrow\infty}\ 17$$  

$$\lim_{n\rightarrow\infty}\ \frac{2n-4n^2+5n^5}{1+5n^2-10n^5}$$  

$$\lim_{n\rightarrow\infty}\ \frac{n+5}{\sqrt[]{n^2+10}}$$