Question Number 128029 by Algoritm last updated on 03/Jan/21
Answered by MJS_new last updated on 03/Jan/21
$$\mathrm{3}^{−\mathrm{5}/\mathrm{4}} <{x}<\mathrm{3}^{−\mathrm{1}} \vee\mathrm{3}^{\mathrm{5}} <{x} \\ $$$$\mathrm{let}\:{x}=\mathrm{3}^{{t}} \:\mathrm{to}\:\mathrm{get}\:\mathrm{this}\:\mathrm{very}\:\mathrm{easily} \\ $$