sin5/3π= ,cos5/3π
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sin5/3π=,cos5/3πsin5/3π=,cos5/3πsin5/3π=,cos5/3πsin5/3π=sin(π+2/3π)=-sin2/3π=-√3/2cos5/3π=cos(π+2/3π
sin5/3π= ,cos5/3π
sin5/3π= ,cos5/3π
sin5/3π= ,cos5/3π
sin5/3π
=sin(π+2/3π)
=-sin2/3π
=-√3/2
cos5/3π
=cos(π+2/3π)
=-cos2/3π
=1/2
sin5/3π= ,cos5/3π
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