函数f(x)=a/x+x+(a-1)Inx+1(a

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函数f(x)=a/x+x+(a-1)Inx+1(a函数f(x)=a/x+x+(a-1)Inx+1(a函数f(x)=a/x+x+(a-1)Inx+1(af(x)=a/x+x+(a-1)Inx+1(a=0

函数f(x)=a/x+x+(a-1)Inx+1(a
函数f(x)=a/x+x+(a-1)Inx+1(a

函数f(x)=a/x+x+(a-1)Inx+1(a
f(x)=a/x+x+(a-1)Inx+1(a=0,此时f(x)为增函数;
当a>-1时,分为以下两种情形:
(i)x1时,f'(x)>=0,此时f(x)为增函数;
(ii)-a=0,此时f(x)为增函数;
(ii)1