Ответ

Автор - John339

Ответ:

sqrt{5} +sqrt{2} .

Пошаговое объяснение:

sqrt{7+2sqrt{10} } =sqrt{sqrt{5}^2+2sqrt{5}sqrt{2}  +sqrt{2}^2  } =sqrt{(sqrt{5} +sqrt{2} )^2} =|sqrt{5} +sqrt{2} |=sqrt{5} +sqrt{2} .

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