x^2-yz/x(1-yz)=y^2-xz/y(1-xz),且x不等于y.求证x+y+z=1/x+1/y+1/z希望达人们能解此题!到底有没有人能解呀?上面这道题可能在写法上大家有误会,十分抱歉,严谨的话应该这样,(x^2-yz)/[x(1-yz)]=(y^2

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