f(x)=ln(x+1)-x怎么求导
问题描述:
f(x)=ln(x+1)-x怎么求导
答
f'(x)=1/(x+1)-1答案是-x/(x+1)再化简一下就跟答案一样了,都可以f'(x)=1/(x+1)-1 =[1-(x+1)]/(x+1)=-x/(x+1) 满意请采纳,O(∩_∩)O谢谢~
f(x)=ln(x+1)-x怎么求导
f'(x)=1/(x+1)-1答案是-x/(x+1)再化简一下就跟答案一样了,都可以f'(x)=1/(x+1)-1 =[1-(x+1)]/(x+1)=-x/(x+1) 满意请采纳,O(∩_∩)O谢谢~