f(x)=e^x(x小于或等于0),f(x)也等于lnx,x>0,求f(f(0.5))

问题描述:

f(x)=e^x(x小于或等于0),f(x)也等于lnx,x>0,求f(f(0.5))

f(f(0.5))=f(ln0.5)=e^(ln0.5)=0.5