y=xarccosx-√(1-x^2),求 (d^2y)/dx^2
已知dx/dy=1/y′,求d(2)y/d x^2?
d/dx((x^2+y^2)^2)=d/dx(x^2-y^2),求(化简)dy/dx=?
y=(1+x^2)arctan x 用MATLAB求(d^2*y)/dx^2
已知(dy/dx)=(1/y) ,求 (d^2y)/(d^2x)=?注意:不是求(d^2y)/(dx^2)
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
设函数y=sin(2x²+1),求dy/dx,d²y/dx²
y=1/2·x·√(ln[x+²√(x²﹢a²)],求dy/dx及d²y/dx&
已知y=cosx^2,求d^y/dx^2;d^y/dx^3..
求微分 方程y-2x=(x-y)ln(x-y) 求dy/ dx 和d^2y/ dx^2
求微分方程初值y^3d^2y/dx^2+1=0,y|x=1=1,dy/dx|x=1=0
设y=y(x)是由方程xy+e^y=y+1所确定的隐函数,求d^2y/dx^2 x=0
试从dx/dy=1/y'导出:d^2x/dy^2=-y''/(y')^3 题目中关于d[1/y']/dx}*[dx/dy