Question

y=x/x+1的导数值是多少啊如题

Answer 1

y=x/(x+1) y'=[x'*(x+1)-x*(x+1)']/[(x+1)^2] =[(x+1)-x]/[(x+1)^2] =1/[(x+1)^2] 希望帮你解决了本题.学习顺利.