Question

log1/3 x+log3 x+log9 x<=-1

Answer 1

-log3 x) +log3 x +(log3 x)/(log3 9)≤-1; x>0!
1/2 *log3 x≤-1
log3 x≤-2
log3 x≤log3 3^(-2)
0<x≤1/9
Ответ(0;1/9]