卷別基礎數學選擇國立中興大學 2025 · 考試 · 第 7 題 考科演算法(2 points) Given three functions, F(x)=x3+x2+2x+1+x−1F(x) = x^3 + x^2 + 2x + 1 + x^{-1}F(x)=x3+x2+2x+1+x−1, G(x)=x4logx+2nx+2xnG(x) = x^4 \log x + 2^n x + 2^x nG(x)=x4logx+2nx+2xn, H(x)=lognx8+x3H(x) = \log_n x^8 + x^3H(x)=lognx8+x3, which of the following items has the smallest Big O?(A)F(x)⋅H(x)+G(x)F(x) \cdot H(x) + G(x)F(x)⋅H(x)+G(x)(B)F(x)+G(x)⋅H(x)F(x) + G(x) \cdot H(x)F(x)+G(x)⋅H(x)(C)F(x)⋅G(x)+H(x)F(x) \cdot G(x) + H(x)F(x)⋅G(x)+H(x)(D)F(x)⋅F(x)+G(x)⋅H(x)F(x) \cdot F(x) + G(x) \cdot H(x)F(x)⋅F(x)+G(x)⋅H(x)(E)F(x)⋅G(x)⋅F(x)F(x) \cdot G(x) \cdot F(x)F(x)⋅G(x)⋅F(x)標準解析AI 已複查顯示標準解析 上一題第 6 題第 8 題下一題