cos(π/12)cos(5π/12)=
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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
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：六六作业网 时间：2024/11/26 14:04:43
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