(-3)^2009*(1/3)^2010计算

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答案和解析

(-3)^2009*(1/3)^2010
=(-3)^2009*(1/3)^2009*(1/3)
=1/3*[(-3)*(1/3)]^2009
=1/3*(-1)^2009
=1/3*(-1)
=-1/3

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