1. The problem statement, all variables and given/known data Find the maximum and minimum values of the function F(x)=ln(x/(x^2+1)) on the interval (0,10] 2. Relevant equations d/dx[lnu]=u'/u 3. The attempt at a solution f'(x)=(1-x^2)/[(1+x^2)x] f'(x)=0 when 1-x^2=0 1=x^2 x=1 which is the maximum f(1)=-.693 what do I use for the minimum since f(0)=-[tex]\infty[/tex] ? I cant write -[tex]\infty[/tex] because 0 is not included in the interval.