作业帮f(x^2-y^2,x-y)=x+y+x^2-xy,求fy(x,y)的导数.
来源：学生作业帮助网 编辑：作业帮 时间：2024/11/03 05:35:56
x)KӨ3ҭ3ҩЭԴЮ TT<ؔVQS|V{MݠgTO;y:{Nm
0M}
v4\D,go6YgÓKVWUh@qnؐJ<; j
f(x^2-y^2,x-y)=x+y+x^2-xy,求fy(x,y)的导数.
f(x^2-y^2,x-y)=x+y+x^2-xy,求fy(x,y)的导数.
f(x^2-y^2,x-y)=x+y+x^2-xy,求fy(x,y)的导数.
因 f(x^2-y^2,x-y)=x+y+x^2-xy =(x^2-y^2)/(x-y) +[(x^2-y^2)+(x-y)^2 ] /2
所以f(x,y)=x/y+(x+y^2)/2,
fy(x,y)= -x / (y^2)+y
x-y/x-x+y/y-(x+y)(x-y)/y² y/x=2
f(x+y,x-y)=(x^2-y^2)/2xy,求f(x,y)!
设f(x+y,x-y)=x^2-y^2,则f(x,y)=
若f(x+y,y/x)=x^2-y^2,则F(X,Y)=
已知f(x+y,y/x)=x^2-y^2,则f(x,y)=
f(x+y,y/x)=x^2-y^2求f(x,y)
f(x+y,y/x)=x^2-y^2,求f(x,y),详见里面
f(x+y,x-y)=2xy(x-y),求f(x,y)
f(xy,x-y)=x^2+y^2+xy;f(x,y)/∂x;f(x,y)/∂y
(X,Y) f(x,y)={12y^2,0
f(x+y)=f(x)+f(y)+2xy
f(x^2-y^2,x-y)=x+y+x^2-xy,求f'(x,y)对y求导
已知F(X+Y,X-Y)=X^2*Y+X*Y^2,则F(X,Y)=?
设f(x+y,x-y)=x^2+y^2-x*y求f(x,y)
f[(x+y)/2]
设f(x+y,x-y)=x^2+xy,求f(x,y)
f(x+Y)+f(x-y)=2f(x)f(Y) 求其是偶函数 急
求证f（x+y）+f(x-y)=2f(x)f(y)是周期函数