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Пользользуемся свойствами степеней:
![sqrt[m]{ {a}^{n} } = {a}^{ frac{n}{m} } \ sqrt[m]{ {a}^{n} } = {a}^{ frac{n}{m} } \](https://tex.z-dn.net/?f=+sqrt%5Bm%5D%7B+%7Ba%7D%5E%7Bn%7D+%7D+%3D+%7Ba%7D%5E%7B+frac%7Bn%7D%7Bm%7D+%7D+%5C+)
![b sqrt[m]{ {a}^{n} } = sqrt[m]{ {b}^{m} times {a}^{n} } \ b sqrt[m]{ {a}^{n} } = sqrt[m]{ {b}^{m} times {a}^{n} } \](https://tex.z-dn.net/?f=b+sqrt%5Bm%5D%7B+%7Ba%7D%5E%7Bn%7D+%7D+%3D+sqrt%5Bm%5D%7B+%7Bb%7D%5E%7Bm%7D+times+%7Ba%7D%5E%7Bn%7D+%7D+%5C+)
![sqrt[m]{ sqrt[n]{a} } = sqrt[m times n]{a} \ sqrt[m]{ sqrt[n]{a} } = sqrt[m times n]{a} \](https://tex.z-dn.net/?f=+sqrt%5Bm%5D%7B+sqrt%5Bn%5D%7Ba%7D+%7D+%3D+sqrt%5Bm+times+n%5D%7Ba%7D+%5C+)
![{ (sqrt[m]{ {a}^{n} }) }^{k} = sqrt[m]{ {a}^{n times k} } { (sqrt[m]{ {a}^{n} }) }^{k} = sqrt[m]{ {a}^{n times k} }](https://tex.z-dn.net/?f=+%7B+%28sqrt%5Bm%5D%7B+%7Ba%7D%5E%7Bn%7D+%7D%29+%7D%5E%7Bk%7D+%3D+sqrt%5Bm%5D%7B+%7Ba%7D%5E%7Bn+times+k%7D+%7D)
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![sqrt[4]{x sqrt[2]{x sqrt[3]{x} } } = sqrt[4]{ sqrt[2]{ {x}^{2} times x sqrt[3]{x} } } = sqrt[4]{ sqrt[2]{ {x}^{3} sqrt[3]{x} } } = \ = sqrt[4]{ sqrt[2]{ sqrt[3]{ {x}^{9} times x} } } = sqrt[4]{ sqrt[2]{ sqrt[3]{ {x}^{10} } } } = sqrt[24]{ {x}^{10} } = \ = sqrt[24]{ {( sqrt[5]{ {27}^{4} } )}^{10} } = sqrt[24]{ sqrt[5]{ {27}^{4 times 10} } } = sqrt[24]{ sqrt[5]{ {27}^{40} } } = \ = sqrt[120]{ {27}^{40} } = {27}^{ frac{40}{120} } = {27}^{ frac{1}{3} } = {3}^{ 3 times frac{1}{3} } = 3 \ sqrt[4]{x sqrt[2]{x sqrt[3]{x} } } = sqrt[4]{ sqrt[2]{ {x}^{2} times x sqrt[3]{x} } } = sqrt[4]{ sqrt[2]{ {x}^{3} sqrt[3]{x} } } = \ = sqrt[4]{ sqrt[2]{ sqrt[3]{ {x}^{9} times x} } } = sqrt[4]{ sqrt[2]{ sqrt[3]{ {x}^{10} } } } = sqrt[24]{ {x}^{10} } = \ = sqrt[24]{ {( sqrt[5]{ {27}^{4} } )}^{10} } = sqrt[24]{ sqrt[5]{ {27}^{4 times 10} } } = sqrt[24]{ sqrt[5]{ {27}^{40} } } = \ = sqrt[120]{ {27}^{40} } = {27}^{ frac{40}{120} } = {27}^{ frac{1}{3} } = {3}^{ 3 times frac{1}{3} } = 3 \](https://tex.z-dn.net/?f=+sqrt%5B4%5D%7Bx+sqrt%5B2%5D%7Bx+sqrt%5B3%5D%7Bx%7D+%7D+%7D+%3D+sqrt%5B4%5D%7B+sqrt%5B2%5D%7B+%7Bx%7D%5E%7B2%7D+times+x+sqrt%5B3%5D%7Bx%7D+%7D+%7D+%3D+sqrt%5B4%5D%7B+sqrt%5B2%5D%7B+%7Bx%7D%5E%7B3%7D+sqrt%5B3%5D%7Bx%7D+%7D+%7D+%3D+%5C+%3D+sqrt%5B4%5D%7B+sqrt%5B2%5D%7B+sqrt%5B3%5D%7B+%7Bx%7D%5E%7B9%7D+times+x%7D+%7D+%7D+%3D+sqrt%5B4%5D%7B+sqrt%5B2%5D%7B+sqrt%5B3%5D%7B+%7Bx%7D%5E%7B10%7D+%7D+%7D+%7D+%3D+sqrt%5B24%5D%7B+%7Bx%7D%5E%7B10%7D+%7D+%3D+%5C+%3D+sqrt%5B24%5D%7B+%7B%28+sqrt%5B5%5D%7B+%7B27%7D%5E%7B4%7D+%7D+%29%7D%5E%7B10%7D+%7D+%3D+sqrt%5B24%5D%7B+sqrt%5B5%5D%7B+%7B27%7D%5E%7B4+times+10%7D+%7D+%7D+%3D+sqrt%5B24%5D%7B+sqrt%5B5%5D%7B+%7B27%7D%5E%7B40%7D+%7D+%7D+%3D+%5C+%3D+sqrt%5B120%5D%7B+%7B27%7D%5E%7B40%7D+%7D+%3D+%7B27%7D%5E%7B+frac%7B40%7D%7B120%7D+%7D+%3D+%7B27%7D%5E%7B+frac%7B1%7D%7B3%7D+%7D+%3D+%7B3%7D%5E%7B+3+times+frac%7B1%7D%7B3%7D+%7D+%3D+3+%5C+)
ОТВЕТ: 3
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ОТВЕТ: 3
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