题目 Problem Using calculus, find the exact values of (i) ∫12dxx2−4x+5\int_1^2 \frac{dx}{x^2 - 4x + 5}∫12x2−4x+5dx (ii) ∫23x2−3x2 dx.\int_2^3 \frac{x^2 - 3}{x^2}\,dx.∫23x2x2−3dx. (8) 题目中文翻译 利用微积分求下列各积分的精确值: (i) ∫12dxx2−4x+5\int_1^2 \frac{dx}{x^2 - 4x + 5}∫12x2−4x+5dx (ii) ∫23x2−3x2 dx。\int_2^3 \frac{x^2 - 3}{x^2}\,dx。∫23x2x2−3dx。 解答