α> How to prove that 1 / x ^ α is the infinitesimal of higher order of 1 / (㏑ x) ^ β

α> How to prove that 1 / x ^ α is the infinitesimal of higher order of 1 / (㏑ x) ^ β

lim(1/x^α)/(1/(㏑x)^β)
=lim(㏑x)^β)/x^α
=limβ(lnx)^(β-1)/αx^α
Go on, the limit is 0