討論串[考古] 幾題計算題請問
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y = x - x^2. => x - x^2 = 0 => (x)(1 - x) = 0 => x = 0 或 1. y = 0. 1. V = ∫ (2π)|x-2||y| dx. 0. 1. = ∫ (2π)(2-x)(x - x^2) dx. 0. 1. = (2π)(∫ x^3 - (3)
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3. Let f(x,y,z) = x^2 + y^2 + z^2. g(x,y,z) = x + y + z - 1. h(x,y,z) = x^2 + y^2 - 1. F(x,y,z) = f(x,y,z) + (λ)(g(x,y,z)) + (μ)(h(x,y,z)). = x^2 + y^
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1.Show that the parabola y=-x^2 and the line x-4y-18=0 intersect at right. angle at one of their points of intersection(於兩個交點之一以直角相交). (請問這題方程式如何設). 2
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