你竖运好！
sh c = [ e^c - e^(-c) ] / 2 = 3/4
解码洞得 e^c = 2
ln(e^x+√e^2x+1)=c
2e^x + 1 = e^c = 2
e^x = 1/2
x = ln(1/迟纤枯2) = - ln2
设常数shc=3/4 解方程ln(e^x+根号e^2x+1)=c
你竖运好！
sh c = [ e^c - e^(-c) ] / 2 = 3/4
解码洞得 e^c = 2
ln(e^x+√e^2x+1)=c
2e^x + 1 = e^c = 2
e^x = 1/2
x = ln(1/迟纤枯2) = - ln2