sin45°·cos60°+sin45°=√2/2·√3/2+√2/2=√6/4+√2/2=√6+√2/2,

来源:学生作业帮助网 编辑:作业帮 时间:2024/04/28 03:25:12
sin45°·cos60°+sin45°=√2/2·√3/2+√2/2=√6/4+√2/2=√6+√2/2,

sin45°·cos60°+sin45°=√2/2·√3/2+√2/2=√6/4+√2/2=√6+√2/2,
sin45°·cos60°+sin45°=√2/2·√3/2+√2/2=√6/4+√2/2=√6+√2/2,

sin45°·cos60°+sin45°=√2/2·√3/2+√2/2=√6/4+√2/2=√6+√2/2,
sin45°×cos60°+sin45°=(√2/2)×(1/2)+(√2/2)=3√2/4