求一个函数的导数
展开全部
除了可以运用两个函数商的求导法则计算外,还可如下简算:
[2(1-x)/(x+1)³]'
=-2[(x-1)/(x+1)³]'
=-2[(x+1-2)/(x+1)³]'
=-2[1/(x+1)²-2/(x+1)³]'
=-2[-2/(x+1)³+6/(x+1)^4]
=4[1/(x+1)³-3/(x+1)^4]
=4(x-2)/(x+1)^4.
[2(1-x)/(x+1)³]'
=-2[(x-1)/(x+1)³]'
=-2[(x+1-2)/(x+1)³]'
=-2[1/(x+1)²-2/(x+1)³]'
=-2[-2/(x+1)³+6/(x+1)^4]
=4[1/(x+1)³-3/(x+1)^4]
=4(x-2)/(x+1)^4.
已赞过
已踩过<
评论
收起
你对这个回答的评价是?
推荐律师服务:
若未解决您的问题,请您详细描述您的问题,通过百度律临进行免费专业咨询