Question 1032078
{{{int(lnt/t, dt,1,2x) = int(lnt, d(lnt), 1, 2x) = ((lnt)^2/2)[1]^(2x)}}}

={{{(ln(2x))^2/2 - (ln(1))^2/2 = (ln(2x))^2/2}}}.

The second integral is true because of the relation {{{d(lnt) = dt/t}}}.