根号下(1-2tan60°+tan^260°)-tan60°计算过程
问题描述:
根号下(1-2tan60°+tan^260°)-tan60°计算过程
答
tan60°=根号(3)>1
根号下(1-2tan60°+tan^260°)-tan60°
=根号下【(1-tan60°)^2】-tan60°
=tan60°-1-tan60°
=-1