1 间断点 x = 0lim(1+x)^(1/x) = e , 故该间断点是可去间断点2 y = (x+1)(x-1)/[(x-1)(x-2)]间断点 x = 1，及 x = 2lim (x+1)(x-1)/[(x-1)(x-2)] = -2 , 故 x = 1 是可去间断点；lim (x+1)(x-1)/[(x-1)(x-2)] = ∞ , 故 x = 2 是无穷间断点。
