Problemlimx→3(x2+1)\lim_{x \to 3}(x^2 + 1)limx→3(x2+1)Step-by-step solutionf(x)=x2+1f(x) = x^2 + 1f(x)=x2+1 是多項式 — 處處連續。直接代入：limx→3(x2+1)=32+1=10\lim_{x \to 3}(x^2 + 1) = 3^2 + 1 = 10limx→3(x2+1)=32+1=10。Answer101010Want to solve a different problem? Open the limit solver →Related worked examples/solve/calculus/limit-of-x2-as-x-approaches-2