tan(-5派/4)=?tan(-2派/3)=?
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tan(-5派/4)=?tan(-2派/3)=?tan(-5派/4)=?tan(-2派/3)=?tan(-5派/4)=?tan(-2派/3)=?tan(-5派/4)=-tan(π/4)=-1tan(-
tan(-5派/4)=?tan(-2派/3)=?
tan(-5派/4)=?tan(-2派/3)=?
tan(-5派/4)=?tan(-2派/3)=?
tan(-5派/4)
=-tan(π/4)
=-1
tan(-2派/3)
=tan(π/3)
=√3
tan(-5派/4)=-1
tan(-2派/3)=根号3