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

Theory

an=a1/a \sqrt[n]a= a^{\left.1\middle/a\right.}

The nnth root of a number is equivalent to raising that number to the power of 1/n.\left.1\middle/n\right.. 37=31/7 \sqrt[7]3 = 3^{\left.1\middle/7\right.}