dx/dt=6t+2,dy/dt=(3t+1)sin(t^2),求d^2y/dx^2
dx/dt=6t+2,dy/dt=(3t+1)sin(t^2),求d^2y/dx^2
y=∫(x 1)sin(t∧2)dt,求dy/dx
y=∫(1 -x)sin(t∧2)dt,求dy/dx
=ln(1+t^2),y=arctant 求d²y/dx²的时候d/dt*(dy/dx)=-(1/2
y= ∫[0,x](t-1)^3(t-2)dt,dy/dx(x=0)
求该函数对x的导数 y=∫ (1,-x ) sin(t^2) dt ,求dy/dx
已知 x=e^t ,dy/dx=dy/xdt .分析变换具体步骤 d^2y/dx^2=(d^2y/dt^2-dy/dt)
求dy/dx,y=∫sin(t^2)dt由1/x积到根号x
求d/dx{∫cos(t^2)dt}
dx/dt=x+t,dy/dt=-y+t,求x,y(t为常数).
x=f(t) y=g(t) 为什么dy/dx=(dy/dt)*(dt/dx)
参数方程的二阶导数中d^2y/dx^2=(d/dx)(dy/dx)=(d/dt)(1/dx/dt)(dy/dx),是一个