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Question-164515




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

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