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ਜਾਂਚ ਕਰੋ:- x^3 + y^3 + z^3 -3xyz =1/2(...

ਜਾਂਚ ਕਰੋ:- `x^3 + y^3 + z^3 -3xyz =1/2(x+y+z) [(x-y)^2+(y-z)^2+(z-x)^2]`

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