and 在德國-和這裡不要做此,請,其他老師也許不喜歡-學生進來 (他一起這裡攫取他的手指)…和 [translate] aFind the equation of the tangent to the curve 4x2 + 3y2 = 7 at the point (1,1) . 发现正切的等式对曲线4x2 + 3y2 = 7在点 (1,1) 。 [translate] ...
找到方程的切线和正常的曲线分别y = cos x点(Π/ 3,1/2)
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...
找到方程的切线和正常的曲线分别y = cos x点(Π/ 3,1/2)
Let the equation of the tangent line be y= -x +b. Substituting this into the equation of the circle: 2x^2- 2bx+b^2-4=0 . Since the line is tangent to the circle, we have △=(-2b)^2-4*2(b^2-4)=0 Solving for b: b =±2 2. So the equation of the tangent line is ...
题目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 whi...
100分求一道数学题, Find an equation for the tangent line to the curve x^2y + xy^3 = 2 at t
Find the equation of the tangent line to curve (X^2/16)-(y^2/9)=1at point (-5,9/4)..我不会翻译.回答标题的问题或者直接解答这个问题.(x^2)/16 + (Y^2)/9 = 1蝈蝈墨水鱼,我没让你求X和Y啊。是求切线的方程式拉。而且。不是问圆啦。都怪我没讲清楚。是说在(x^2)/16 + (Y^2...
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,...