Question Number 171870 by Mikenice last updated on 21/Jun/22
$${if}\:{x}\:{is}\:{a}\:{real}\:{number},{then} \\ $$$$\sqrt{{log}_{{e}} \:\frac{\mathrm{4}{x}−{x}^{\mathrm{2}} }{\mathrm{3}}\:}\:\: \\ $$
Answered by floor(10²Eta[1]) last updated on 21/Jun/22
$$??\:\mathrm{whats}\:\mathrm{your}\:\mathrm{question} \\ $$
Commented by Mikenice last updated on 22/Jun/22
$${A}\:{two}\:{digits}\:{number}\:{is}\:{such}\:{that}\: \\ $$$$\mathrm{4}\:{times}\:{the}\:{units}\:{digit}\:{is}\:\mathrm{5}\:{more}\:{than} \\ $$$${thrice}\:{the}\:{ten}\:{digit}.\:{when}\:{the}\:{digit} \\ $$$${are}\:{reversed}\:{the}\:{number}\:{is}\:{increase}\: \\ $$$${by}\:{nine},\:{find}\:{the}\:{number}. \\ $$
Commented by floor(10²Eta[1]) last updated on 21/Jun/22
$$\mathrm{solve}\:\mathrm{what}????\:\mathrm{you}\:\mathrm{just}\:\mathrm{wrote}\:\mathrm{some}\:\mathrm{expression} \\ $$$$\mathrm{ok},\:\mathrm{solve}\:\mathrm{this}: \\ $$$$\:\mathrm{if}\:\mathrm{3}\:\mathrm{is}\:\mathrm{a}\:\mathrm{real}\:\mathrm{number}\:\mathrm{then} \\ $$$$\:\sqrt{\mathrm{7}}\:\:\: \\ $$$$ \\ $$$$???? \\ $$