The arc of the curve between points with x-coordinates 1 and 3 is rotated completely about the x-axis. 相关知识点: 试题来源: 解析 (dy)(dx)=-1(2x^2)+12x^2(split)√(1+((dy)(dx))^2)&=√(1+14(x^2-1x^2)^2) &=√(14x^2+12+14.1(x^2)) &=√((12)^2.(x^2+(...
百度试题 结果1 题目The curve C has equation y=3x^2-12x+8Find\dfrac{\d y}{\d x}\dfrac{\d y}{\d x} = ___ 相关知识点: 试题来源: 解析 6x-12 反馈 收藏
In this case the curve is convex.It p>2q then there is no solution to thisequation and only the two blue tangents arepossible. In this case the curve is convex.Hence the curve is convex for p≥ 2q, and has a dimple for p<2q....
百度试题 结果1 题目 The curve C has equation y=f(x), where f(x)=xe^(-x^2). Find the exact value of f(x)=xe^(-x^2). 相关知识点: 试题来源: 解析 . 反馈 收藏
答案 曲线C的导数y'=3x^2-12x-4/x^2x=1时,y'=-13x=2时,y'=-13所以过P和Q的切线是平行的.相关推荐 1A-level曲线的切线数学题The curve C has equation y=x2(x-6)+4/x p(1,-1) Q(2,-14)Show that the tangents to C at p and Q are parallel 反馈...
The curve C has equation (有图片 The point P (4, 3) lies on C. dx (a) Find dy , giving your answer in simplest form. x2 4 8 y=3+ x+3x−5 x>0 The curve C has equation (有图片 The point P (4, 3) lies on C. dx (a) Find dy , giving your answer in...
百度试题 结果1 题目The curve C has equation r= k/(1+ecos t) By working through the followinginvestigate the shape of C.Describe C for (a) e=0 (b} 0 e<1 (c) e=1 (d) e>1 相关知识点: 试题来源: 解析 (下架) 反馈 收藏 ...
12 The curve Chas equation y=1/3x^3-9x+1(a) Find(dy)/(dx)= 3*x^2/3-9(2)(b)Find the range of values of x for which C has a negative gradient.-3x3oe(3) 相关知识点: 试题来源: 解析 3×x²/3-9-3解析(a)for -9oe(b)in (a) then award BI for quadratic (a...
2. The curve C has equation y = x3 – 4x2 + 8x + 3. The point P has coordinates (3, 0). (a) Show that P lies on C. (b) Find the equation of the tangent to C at P, giving your answer in the form y = mx + c, where m and c
The curve C has polar equation r= a(1 + sin θ) for-πθ≤π. where a is a positive constant.Show that the length of the arc of C from the pole to the point furthest from the pole is given bys=(√2)a∫_-(1^2√x)/(√((1+sinθ)o))[3] 相关知识点: 试题来源: ...