Question

помогите пж log1/5(x-3) <-1
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Answer 1

$\displaystyle\bf\\ODZ:\\x-3>0 \ \ \Rightarrow \ \ x>3\\\\\log_{\frac{1}{5} } (x-3)<-1\\\\x-3>5\\\\x>8\\\\Otvet:x\in(8 \ ; \ +\infty)$