Answer :
For a real z, ln(z)/z is always a real number, so the Re() is quite useless.
Thus we just need to write [tex]ln(z)/z=ln(r)+ln(\cos(\theta)+\sin(\theta))[/tex], and we can't simplify any more.
Thus we just need to write [tex]ln(z)/z=ln(r)+ln(\cos(\theta)+\sin(\theta))[/tex], and we can't simplify any more.