2 1.Find the equation of the tangent to the curve y=x2,which is parallel to the x-axis2.Find the equation of the tangent to the curve y=x2-2x which is perpendicular to the line 2y=x-13.Find the equation of the normal to the curve y=3x2-2x-1 which is parallel to the lin...
a她真的改变了许多 Her real change many[translate] asuper fly 上等的飞行[translate] aFind the equation of the tangent and the normal respectively to the curve 发现正切的等式和法线分别对曲线[translate]
题的意思是：求f(x)=8/√(x^2+3x)在点(1,4)处的切线方程 重点是求函数在x=1处的f'(x)直接求导很麻烦，可采用对数求导法，lnf(x)=ln8-(ln(x^2+3x))/2 两边同时对x求导，f'(x)/f(x)=-(2x+3)/2(x^2+3x)把x=1,f(x)=4带入，得 f'(x)=-5/2 可以求出切线方程为y...
Find the equation of the tangent line at x=2 for f(x)=√((4x+1)/(5x-1))100分题, 答案 定义域为D={x|x=1/5}导数f'(x) =-9/[2*(5x-1)²*√((4x+1)/(5x-1)) ]f'(2)=-1/18f(2)=1在点(2,1),函数的切线的斜率为-1/18,切线方程为 y-1=-1/18 *(x-2)整理,...
The curve with equation y2 = x3 +3x2 is called the Tschirnhausen cubic.Find an equation of the tangent line to this curve at the point (1,−2).tschirnhausen cubic我不知道是什麽意思,就是要找这个曲线方程的正切相交得点.不会怎麼解这种题,明天要用到,...
Find the equation of line tangent to the graph of f(x)=e+ln x at x=1? 答案 e是常数,f'(x)=1/x,所以切线在x=1点的斜率是1,在x=1点的函数值是e.So the equation of the tangent line of graph at x=1 is f(x)=x+e-1相关推荐 1Find the equation of line tangent to the grap...
The slope of a function f(x) and the slope of the tangent line at the same point on f(x) are the same, and are equivalent to f′(a), where x=a is the point the tangent line and the function have in common. The equation of the tangent line can be obtaine...
Find the equation of the tangent line to the graph {eq}f(x) = \frac{1}{x^{3}} \text{ at } x=3 {/eq} Slope of Tangent Line: Let {eq}y = f(x) {/eq} be a curve and {eq}(x_1, y_1) {/eq} be a point on the curve. The slope of a tangent ...
Theorem A Tangent Planes For the surface F(x, y, z) = k, the equation of the tangent plane at (xo, yo, zo) is VF(xo. yo, Zo). (x - xo, y - yo, z - Zo) = O; that is, In particular, for the surface z = f(x, y), the equation of the tangent plane at (xo, yo...