Question Number 164515 by ajfour last updated on 18/Jan/22
Commented by ajfour last updated on 18/Jan/22
$${Find}\:{x}\:{in}\:{terms}\:{of}\:{c},\:{even}\:{when} \\ $$$$\:\:\:\:\:{c}<\frac{\mathrm{2}}{\mathrm{3}\sqrt{\mathrm{3}}}\:. \\ $$
Commented by mr W last updated on 18/Jan/22
Commented by mr W last updated on 18/Jan/22
$${x}^{\mathrm{3}} ={x}+{c} \\ $$$${x}^{\mathrm{3}} −{x}−{c}=\mathrm{0} \\ $$$$….\:{cardano}\:{or}\:{trigonometry} \\ $$