2sin30°-sin²45°+tan30°
问题描述:
2sin30°-sin²45°+tan30°
答
2sin30°-sin²45°+tan30°=2*(1/2)-(√2/2)²3+√3/3=(3+2√3)/6
2sin30°-sin²45°+tan30°
2sin30°-sin²45°+tan30°=2*(1/2)-(√2/2)²3+√3/3=(3+2√3)/6