Question 452085
  <pre><font face = "Tohoma" size = 4 color = "indigo"><b> 
Hi,
*[tex \LARGE \ \ \ \ \ \ y = \log_b(a) \ \ \Rightarrow\ \  a>0 ]
*[tex \LARGE \ \ \ \ \ \ f(x) = \ln(4x-x^2) \ \ \Rightarrow\ \ (4x-x^2 >0 ]

 4x - x^2 > 0  x > 0 AND 4-x >0 or 4 > x
Domain:  0 < x < 4