采纳吧
(5)由y=1+ln(x+2) y-1=ln(x-2)x+2=e^(y-1)x=-2+e^(y-1)反函数y=-2+e^(x-1)(6)y=2^x/(2^x+1)2^xy+y=2^x(1-y)2^x=y2^x=y/(1-y)x=log₂y/(1-y)反函数y=log₂x/(1-x)。