sin²30°+2sin60°+tan45°-tan60°+cos²30°

来源：学生作业帮助网编辑：六六作业网时间：2025/02/07 12:35:46

sin²30°+2sin60°+tan45°-tan60°+cos²30°sin²30°+2sin60°+tan45°-tan60°+cos²30°sin

sin²30°+2sin60°+tan45°-tan60°+cos²30°
sin²30°+2sin60°+tan45°-tan60°+cos²30°