Question

решите неравенство (0,09)^5x-1<0.3^x+7

Answer 1

$<var> (0,09)^{5x-1}<0.3^{x+7}\ (0,3)^{2(5x-1)}<0.3^{x+7}\10x-2<x+7\9x<9\x<1\\boxed{xin(-infty;1}$

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Answer 2

 (0,09)^5x-1<0.3^x+7  (0,3)^10x-2<0.3^x+7 10x-2<x+7 10x-х<9 9x<9 x<1