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已知xyz都是实数,且z=根号x-y+根号y-x-根号-(x-2)的平方,求xyz的值已知xyz都是实数,且z=根号x-y+根号y-x-根号-(x-2)的平方,求x,y,z的值
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已知xyz都是实数,且z=根号x-y+根号y-x-根号-(x-2)的平方,求xyz的值
已知xyz都是实数,且z=根号x-y+根号y-x-根号-(x-2)的平方,求x,y,z的值
已知xyz都是实数,且z=根号x-y+根号y-x-根号-(x-2)的平方,求x,y,z的值
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答案和解析
x-y>=0
y-x>=0
-(x-2)^2>=0
则 x=y=2
xyz=8
y-x>=0
-(x-2)^2>=0
则 x=y=2
xyz=8
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