问题标题:
【(-3)^100X(-3)^-100错了是(-3)^100X(-3)^-101】
问题描述:

(-3)^100X(-3)^-100

错了是(-3)^100X(-3)^-101

丁振东回答:
  (-3)^100×(-3)^-101   =3^100×(3)^-101   =3^100÷3^101   =1/3
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