Автор - konovalenkodashs

 sqrt[6]{25 + 4 sqrt{6} }  -   sqrt[3]{1 + 2 sqrt{6  } }

Ответ

Проверено экспертом

Автор - kirichekov

Ответ:

= 0

Объяснение:

1.

 sqrt[6]{25 + 4sqrt{6}} =sqrt[6]{25 + 2 times 2 sqrt{6}}=

 = sqrt[6]{25 + 2 times 2sqrt{6} +  {(2sqrt{6}}^{2}) -  {(2 sqrt{6}}^{2}} =

 =  sqrt[6]{1 + 2 times 2 sqrt{6} +  {(2 sqrt{6}}^{2})} =  sqrt[6]{ {(1 + 2 sqrt{6})}^{2}} =

 =  {(1 + 2 sqrt{6})}^{ frac{2}{6}} =  {(1 + 2 sqrt{6})}^{ frac{1}{3}} =

 =  sqrt[3]{1 + 2 sqrt{6}}

2.

 sqrt[3]{1 + 2 sqrt{6}} -  sqrt[3]{1 + 2 sqrt{6}} = 0

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