Trong các giới hạn sau, giới hạn nào bằng 3?

Question

Cơ bản

4 câu trả lời

Answer 1

$\underset{n \to \infty }{lim }\frac{3n^{2}-1}{n}$

Answer 2

$\underset{n \to \infty }{lim }\frac{3n^{2}-n^{4}}{n^{2}+3}$

Answer 3

$\underset{n \to \infty }{lim }\frac{n^{2}-3n^{3}}{n-n^{3}}$

Answer 4

$\underset{n \to \infty }{lim }\frac{2n^{2}-2n^{3}}{n^{3}-5n}$