Question

G 딩
2
$( \sqrt{5 - \sqrt{2) {?}^{2} } }$
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Answer 1

$({ \sqrt{5} - \sqrt{2} ) } ^{2} \\ = 5 + 2 - 2 \times \sqrt{2} \times \sqrt{5} \\ = 7 - 2 \sqrt{10}$

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