y=ln[ln(ln x)] 求导

来源:学生作业学帮网 编辑:学帮网 时间:2024/05/18 11:21:40

y=ln[ln(ln x)] 求导

复合函数
f(x)=lnx
g(x)=ln[ln(x)]
r(x)=ln{lnln(x)]}
r'(x)=[1/lnln(x)]g'(x)=[1/lnln(x)][1/ln(x)]f'(x)=[1/lnln(x)][1/ln(x)](1/x)