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$ \sqrt[n]a= a^{\frac 1 a} $

Theory

an=a1a \sqrt[n]a= a^{\frac 1 a}

The nnth root of a number is equivalent to raising that number to the power of 1n.\frac{1}{n}. 37=317 \sqrt[7]3 = 3^{\frac 1 7}