g(x+e2x+1−1)=ex+1ex−1e2x+1g(x+\sqrt{e^{2x}+1}-1)=e^x+\frac 1 {e^x}-\sqrt{\frac 1 {e^{2x}}+1}g(x+e2x+1−1)=ex+ex1−e2x1+1
求g(x)g(x)g(x)
求调
