1. f(x) = e^x 的反函数为(lnx)^(1/9)2. y = 9x^3+8 的反函数为y = [(x-8)/9]^(1/3)3. (a)ln(ln(x)) = 1 lnx = e x = e^e(b) e^(ax) = Ce^(bx) ax = bx + lnC(a-b)x = lnCx = (lnC)/(a-b)
