作业帮cos(π/12)cos(5π/12)=
来源：学生作业帮助网 编辑：作业帮 时间：2024/05/11 19:33:58
cos(π/12)cos(5π/12)=
cos(π/12)cos(5π/12)=
cos(π/12)cos(5π/12)=
cos(π/12)cos(5π/12)=0.25
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来源：学生作业帮助网 编辑：作业帮 时间：2024/05/11 19:33:58
cos(π/12)cos(5π/12)=
cos(π/12)cos(5π/12)=
cos(π/12)cos(5π/12)=
cos(π/12)cos(5π/12)=0.25