|
|
Ta có:
\mathop {\lim }\limits_{x \to \infty}\frac{(2x-3)^{20}.(3x-2)^{30}}{(5x-1)^{50}}
=\mathop
{\lim }\limits_{x \to \infty}\frac{\displaystyle (2-\frac{3}{x})^{20}.(3-\frac{2}{x})^{30}}{\displaystyle(5-\frac{1}{x})^{50}}
=\frac{2^{20}.3^{30}}{5^{50}}
|