计算1º-(½)^2009×(-2)^2010的结果是
问题描述:
计算1º-(½)^2009×(-2)^2010的结果是
答
解
1-(½)^2009×(-2)^2010
=1-(½)^2009×(-2)^2009×2
=1-[(½)×(-2)]^2009×2
=1-[(-1)]^2009×2
=1-(-1)×2
=3