若g(x)=e^x,x≤0=lnx,x>0,则g(g(1/2))=
问题描述：
若g(x)=e^x,x≤0=lnx,x>0,则g(g(1/2))=
答
x=0.5>0 -> g(0.5)=ln0.5
x=ln0.5g(ln0.5)=e^(ln0.5)=0.5
so,0.5