Question

34. Решите пожалуйста неравенства

Answer 1

$1)(1\frac{2}{5})^{x}<\frac{5}{7}\\\\(\frac{7}{5})^{x}<(\frac{7}{5})^{-1}\\\\x<-1\\\\Otvet:\boxed{x\in(-\infty;-1)}$

$2)log_{\frac{1}{3}}(x-3)>1\\\\\left \{ {{x-3<\frac{1}{3} } \atop {x-3>0}} \right.\\\\\left \{ {{x<3\frac{1}{3} } \atop {x>3}} \right.\\\\Otvet:\boxed{x\in(3;3\frac{1}{3})}$