求值sin(-17π/3)
来源:学生作业帮助网 编辑:作业帮 时间:2024/05/23 23:19:54
求值sin(-17π/3)
求值sin(-17π/3)
求值sin(-17π/3)
sin(-17π/3)
=-sin(17π/3)
=-sin(6π-π/3)
=-(-sin(π/3))
=(√3/2)
sin(-17π/3)=sin(-6π+π/3)=sin(π/3)=(根号3)/2
sin(-17π/3)=sin(π/3)=1/2
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来源:学生作业帮助网 编辑:作业帮 时间:2024/05/23 23:19:54
求值sin(-17π/3)
求值sin(-17π/3)
求值sin(-17π/3)
sin(-17π/3)
=-sin(17π/3)
=-sin(6π-π/3)
=-(-sin(π/3))
=(√3/2)
sin(-17π/3)=sin(-6π+π/3)=sin(π/3)=(根号3)/2
sin(-17π/3)=sin(π/3)=1/2