Question 263082
{{{z^(m/n)=z^(m*(1/n))^""}}} Use the property that {{{a/b=a(1/b)}}}



{{{z^(m/n)=z^((1/n)m)^""}}} Commute (ie swap) the terms.



{{{z^(m/n)=(z^(1/n))^m^""}}} Use the identity {{{x^(y*z)=(x^(y))^z}}}.



{{{z^(m/n)=(root(n,z))^m^""}}} Convert to radical notation. Remember that {{{x^(m/n)^""=root(n,x^m)}}}