October 2020

Calculate the limit $ \lim\limits_{n \to  \infty } \frac{1}{ \sqrt{n+1}-\sqrt{n} } $.

Calculate the limit $ \lim\limits_{n \to  \infty } \frac{6n^2-n}{2n^2-5n+4} $.

Calculate the limit $ \lim\limits_{n \to  \infty } \frac{n^3-5n^2}{n^2-2n+1} $.