Question is not very clear.
I thik you mean :
like( ln √a ) , where a is a composite number, ( is a product of its prime factor) , i.e.
a = 12 = 2 * 2 * 3
then ln( √12) = ln √(2^{2} * 3) = ln √2^{2} + ln √3 = ln (2^{2})^{1/2} + 1/2 ln3= ln 2 +1/2 ln 3
9/26/2013

Parviz F.