无法化简,
怎么把xy+(yz+zx)2化简
1个回答
相关问题
-
化简x^2-yz/[x^2-(y+z)x+yz]+y^2-zx/[y^2-(z+x)y+zx]+z^2-xy/[z^2-
-
化简[2y−3z/2yz+2z−3x3zx+9x−4y6xy]可得到( )
-
解方程组 xy=2,yz=3,zx=2
-
y^2+yz+z^2=a^2,z^2+zx+x^2=b^2,x^2+xy+y^2=c^2,yz+zx+xy=0.证明:(
-
证明 (x+y+z)^2>3(xy+yz+zx)
-
已知:xy+yz+zx=m,x
-
[(1/x)-(1/y)+(1/z)]xy/(xy+yz+zx)
-
分式题:xy=x+y,yz=2(y+z),zx=3(z+x),求xyz/(xy+yz+xz)
-
xy+yz+zx=1,x,y,z>=0
-
(1/x+1/y+1/z)×(xy)/(xy+yz+zx)