Question

3^х < 5^х решите неравенство

Answer 1

$3^x\ \textless \ 5^x$
$3^x\ \textless \ 5^x |:5^x$
$\frac{3^x}{5^x} \ \textless \ \frac{5^x}{5^x}$
$( \frac{3}{5} )^x\ \textless \ (\frac{3}{5}) ^0$
$x\ \textless \ 0$
Ответ: x∈(-∞;0)