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|[-1" sing the properties of determinant...

|[-1" sing the properties of determinants,prove that: "],[(y+z)^(2),x^(2),x^(2)],[y^(2),(z+x)^(2),y^(2)],[z^(2),z^(2),(x+y)^(2)]|=2xyz(x+y+z)^(3)

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Prove that : |{:((y+z)^(2),x^(2),x^(2)),(y^(2),(x+z)^(2),y^(2)),(z^(2),z^(2),(x+y)^(2)):}|=2xyz (x+y+z)^(3)

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