Вариант 14: 1) \(\frac{54}{(3\sqrt3)^2}\); 2) \(\sqrt{\frac{100}{169}}+\sqrt{\frac{25}{100}}\); 3) \(\frac{(\sqrt{17}+\sqrt3)(\sqrt{17}-\sqrt3)}{\sqrt3}\); 4) \((\sqrt5-\sqrt7)^2\); 5) \(0{,}5\sqrt{0{,}04}+\frac13\sqrt{36}\); 6) \(2\sqrt{50}-8\sqrt2-3\sqrt{98}\); 7) \(\frac{\sqrt{2{,}7}}{\sqrt{0{,}3}}\); 8) \(\sqrt{7^4\cdot2^2}\).

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