Question

Помогите lim 1+7^n+2/3-7^n

Answer 1

$limlimits _{n to +infty}frac{1+7^{n+2}}{3-7^{n}}= limlimits _{n to +infty}frac{7^{n+2}(frac{1}{7^{n+2}}+1)}{7^{n}(frac{3}{7^{n}}-1)}= limlimits _{n to +infty}frac{7^2(frac{1}{7^{n+2}}+1)}{frac{3}{7^{n}}-1}=\\= frac{49(0+1)}{0-1} =-49$

Answer 2

Спасибо