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If x+y+z=12 andx^2+y^2+z^2=96 and 1/x+1/...

If `x+y+z=12` and`x^2+y^2+z^2=96` and `1/x+1/y+1/z=36 ,` then find the value of`x^3+y^3+z^3`

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