(根号5+2)^2010(根号5-2)^2011
问题描述:
(根号5+2)^2010(根号5-2)^2011
答
(根号5+2)^2010(根号5-2)^2011
=[(√5+2)(√5-2)]^2010×(√5-2)
=√5-2