Math, asked by Shubhanker, 1 year ago

what is the value of cos 2π/3 ?

Answers

Answered by rdahin
11
cos2π/3=cos(π-π/3)=-cosπ/3=-1/2
Answered by Anonymous
11
=cos2π/3
=cos(π-π/3)
=-cosπ/3
=-1/2 
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