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solve-1-x-1-3-2-




Question Number 224314 by Matica last updated on 01/Sep/25
solve ((1−(√x)))^(1/3) =2
$${solve}\:\sqrt[{\mathrm{3}}]{\mathrm{1}−\sqrt{{x}}}=\mathrm{2} \\ $$
Commented by Ghisom_ last updated on 01/Sep/25
no solution ∈C  1−(√x)=8  (√x)=−7=7e^(iπ)   but for x∈C: −(π/2)<arg (√x) ≤(π/2)
$$\mathrm{no}\:\mathrm{solution}\:\in\mathbb{C} \\ $$$$\mathrm{1}−\sqrt{{x}}=\mathrm{8} \\ $$$$\sqrt{{x}}=−\mathrm{7}=\mathrm{7e}^{\mathrm{i}\pi} \\ $$$$\mathrm{but}\:\mathrm{for}\:{x}\in\mathbb{C}:\:−\frac{\pi}{\mathrm{2}}<\mathrm{arg}\:\sqrt{{x}}\:\leqslant\frac{\pi}{\mathrm{2}} \\ $$

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