∵limx→∞f(x)x＝limx→∞2x−1x•e1x=2 limx→∞[y−2x]＝limx→∞[2x(e1x−1)−e1x]=limx→∞[2(e1x−1)1x−e1x]＝2limx→∞1x1x−1＝1∴y的斜渐近线方程为：y=2x+1...