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