題目 Problem (10 points) Find the following limits: (a) (5 points) limx→1ex−1x\lim_{x \to 1} \dfrac{e^x-1}{x}limx→1xex−1 (b) (5 points) limx→−∞(x2+x+1+x)\lim_{x \to -\infty} \left(\sqrt{x^2+x+1}+x\right)limx→−∞(x2+x+1+x) 解答
