what is the value of cos 2π/3 ?
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Answered by
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cos2π/3=cos(π-π/3)=-cosπ/3=-1/2
Answered by
11
=cos2π/3
=cos(π-π/3)
=-cosπ/3
=-1/2
=cos(π-π/3)
=-cosπ/3
=-1/2
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