sin(π/6-α)=1/5,则sin(5π/6+α)=?上课没听懂

发布时间:2021-02-25 16:24:19

sin(π/6-α)=1/5,则sin(5π/6+α)=?上课没听懂

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sin(π/6-α)=1/5,则sin(5π/6+α)=1/5
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