化简一个根式1/((3)^(1/3))如何化成最简,即分母如何有理化,

Question

化简一个根式
1/((3)^(1/3))如何化成最简,即分母如何有理化,

Answer 1

=3^(2/3)/[3^(1/3)×3^(2/3)]
=3^(2/3)/3^(1/3+2/3)
=3^(2/3)/3