Question

$\sqrt{ \sqrt{( \frac{2}{3} } } ) {}^{2}$
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Answer 1

Explicación paso a paso:

$\sqrt{\sqrt{\left(\frac{2}{3}\right)}^2}\\\sqrt{\left(\sqrt{\frac{2}{3}}\right)^2}\\=\sqrt{\left(\sqrt{\frac{2}{3}}\right)^2}\\=\sqrt{\frac{2}{3}}$