Автор - Lionelsa2604

80 баллов помогите прошу..................

Ответ

Проверено экспертом

Автор - yugolovin

sqrt{11sqrt{2}-12}+sqrt{9sqrt{2}+8}-sqrt{3sqrt{2}-4}=sqrt[4]{2}(sqrt{11-6sqrt{2}}+sqrt{9+4sqrt{2}}-sqrt{3-2sqrt{2}}})=

=sqrt[4]{2}(sqrt{9-2sqrt{9cdot 2}+2}+sqrt{8+2sqrt{8cdot 1}+1}-sqrt{2-2sqrt{2cdot 1}+1}=

=sqrt[4]{2}left(sqrt{(3-sqrt{2})^2}+sqrt{(sqrt{8}+1)^2}-sqrt{(sqrt{2}-1)^2}right)=

=sqrt[4]{2}left(|3-sqrt{2}|+|2sqrt{2}+1|-|sqrt{2}-1|right)=

=sqrt[4]{2}left(3-sqrt{2}+2sqrt{2}+1-sqrt{2}+1right)=5sqrt[4]{2}

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