设y=f(x,t),而t=t(x,y)可由F(x,y,t)=0确定,求dy/dx.
设y=f(x,t),而t是方程F(x,y,t)=0所确定的x,y的函数(F't(x,y,t)≠0),求dy/dx..
设函数y=y(x)由x=1-e^t和y=t+e^-t确定,求dy/dx和d^2y/dx^2
设f(t)是二次可微函数且f''(t)不等于0 x=f'(t),y=tf'(t)-f(t),求dy/dx,d^2y/dx
设函数y=y(x)由参数方程x=cos t,y=sin t - t cos t确定,求dy/dx
设参数方程{x=(2+t^2),y=t.确定了函数y(x).求dy/dx?
x=f(t) y=g(t) 为什么dy/dx=(dy/dt)*(dt/dx)
y=y(x)由参数方程x=2t/(1+t^);y=(1-t^2)/1+t^2确定,求dy/dx
请高手赐教:设由参数方程:x=t-arctant;y=ln(1+t^2) 确定y是x的函数,求dy/dx.
设y=f(x,t)而t=t(x,y)是方程F(x,y,t)=0确定的隐函数,f、F均有一阶连续偏导数且F't+F'yf'
x=t,y=t平方,求dx\dy
f(x)为连续函数,∫(1-2)f(x)dx=1,F(t)= ∫(1-t)[f(y) ∫(y-t)f(x)dx]dy,则
求由参数方程x=1-t^2 y=t-t^2确定的函数y=y(x)的导数dy/dx