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Hmmm, I feel that there is going to be a controversy about this question again.
From 1) if 0^0 = 0 then possible answers can be 0 and 2
From 2) we get 0, -1, 1
Therefore C, if 0^0=0
Otherwise E is the answer _________________

Well, this got me totally confused. shubhangi, can you confirm what you meant by [x]? Ever since "[]" was used on this board, it always stood for abs. value. Besides, GMAT never really tested you on the "integral" or "fractional" part of any number _________________