Question

Решите пожалуйста систему

Answer 1

$begin{cases}2^x+6cdot2^{-x}le7,\ frac{2x^2-4x}{x-4}le0;end{cases}, begin{cases}frac{2^{2x}-7cdot2^{x}+6}{2^x}le0,\ frac{2x(x-4)}{x-4}le0;end{cases},begin{cases}(2^x-6)(2^x-1)le0,\ xin(-infty;0];end{cases}\ begin{cases}2^xin[1;6],\ xin(-infty;0];end{cases}, begin{cases}xin[0;log_26],\ xin(-infty;0];end{cases},xin{0}.$