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Using indices to write roots as fractional powers

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Write the following in index form:

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\\[\\sqrt[\\var{n}]{x}\\]

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The $n$th root is writen as a power of $\\frac{1}{n}$ so

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\\[\\sqrt[\\var{n}]{x}=x^{\\frac{1}{\\var{n}}}.\\]

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Use this link to find some resources which will help you revise this topic.

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