Question

determinar as solucoes para a desigualdade 9^1-×>_243 me ajude pfv

Answer 1

$9^{1-x} \ \textgreater \ 243 \\ 3^{2(1-x)} \ \textgreater \ 3^{5} \\ 3^{2-2x}\ \textgreater \ 3^{5}$

Então...

$2-2x\ \textgreater \ 5 \\ -2x\ \textgreater \ 5-2 \\ 2x\ \textless \ -3 \\ x\ \textless \ - \frac{3}{2}$