设a属于R,函数-（x-1)^2+2(a-1)ln(x+1) 1.a

题目

设a属于R,函数-（x-1)^2+2(a-1)ln(x+1) 1.a

答案

f'(x) = 2(x-1) + 2(a-1)/(x+1)
-1