Question

решите неравенство 4^(2-x)<64

Answer 1

$4^{2-x} \ \textless \ 64$
$4^{3} = 64$
$2 - x = 3$
$x = -1$
$x \ \textgreater \ -1$
---------- -1///////////  $\ \textgreater$
Ответ: (+∞; -1)

Answer 2

$4^{2-x}\ \textless \ 4^3$
$2-x\ \textless \ 3$
$-x\ \textless \ 1$
$x\ \textgreater \ - 1$
Ответ: ( - 1; + ∞)