Question

Решите неравенство 1/7^1/4-3x≥(1/7)^1/3-4x

Answer 1

$( \frac{1}{7})^{ \frac{1}{4}-3x} \geq ( \frac{1}{7})^{ \frac{1}{3}-4x}\\\\ \frac{1}{4}-3x \leq \frac{1}{3}-4x\\4x-3x \leq \frac{1}{3}- \frac{1}{4}\\x \leq \frac{1}{12} \\x\in(-\infty; \frac{1}{12}]$