已知f(x)=alnx-ax-3(a∈R)在x=4处的切线的斜率为3/2,若函数g(x)=1/3x^3+x^2[f'(x
a=-2g(x)=...g'(x)=...令g'(x)=0,两个根1正.1负(△>0,且x1*x20,g'(1)"}}}'>