If f, of, x, equals, start fraction, natural log, left bracket, 2, x, right bracket, divided by, x, cubed, end fraction, commaf(x)=
x
3

ln(2x)
​
, what is the value of f, prime, of, start fraction, e, divided by, 2, end fractionf
′
(
2
e
​
) in simplest form?