Question

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Answer 1

`\sqrt[5]{x} = x^{(1)/(5)}\\ \\ \sqrt[5]{x} * \sqrt[5]{x} * \sqrt[5]{x} * \sqrt[5]{x} =\\ x^{(1)/(5)}*x^{(1)/(5)}*x^{(1)/(5)}*x^{(1)/(5)}=\\ x^{(4)/(5)}`

so it is the last option