X3+y3+z3-3xyz=1/2(x+y+z)[(x-y)2+(y-z)2+(z-x)2.prove

1.	X3+y3+z3-3xyz=1/2(x+y+z)[(x-y)2+(y-z)2+(z-x)2.prove
Answer» X3+y3+z3-3xyz=1/2(x+y+z)[(x-y)2+(y-z)2+(z-x)2.prove

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