设函数f(x,y)=sin(x+y),那么f(0,xy)=( )
设函数f(x,y)=sin(x+y),那么f(0,xy)=( )
设函数y=f(x),由方程xy-sin(x+y)=0,确定dy/dx
设函数y=f(x)由方程sin(xy)+e^(x+y)=0确定,求dy/dx
设函数 f(x)=sin(2x+y),(-π
设函数f(x)=y在(0,+∞)上是增函数,并满足f(xy)=f(x)+f(y),f(4)=1
设函数y=f(x)由方程sin y+e^x-xy^2=0确定,求d y/d x
设函数y=f(x)由方程sin(x^2+y)=xy 确定,求dy\dx
设函数f(x)满足f(0)=1,且对任意x,y属于R,都有f(xy+1)=f(x)乘f(y)减f(y)减x加2.求f(x
设f(x+y,xy)=x^2+y^2,则f(x,y)
设函数f(x)在定义域(0,+∞)上为减函数,且f(xy)=f(x)+f(y).f(1/3)=1
设函数f(x)对一切实数x,y满足f(xy)=xf(y)+yf(x)-xy且|f(x)-x|≤1,求函数f(x).
3道高数题1,若函数 f(x,y)= sin(x^2 * y) / xy (xy不等于0) ,f(x,y) = 0 (x