cos 360 + cos 234 + cos 162 + cos 18 = ? Note - numbers are in degree.

Bergen 2021-02-25 Answered
cos360+cos234+cos162+cos18= ?
Note - numbers are in degree.
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brawnyN
Answered 2021-02-26 Author has 91 answers

cos(18)=0.9510565162951535
cos(162)=0.9510565162951535...add this much & yu get zero
cos(360)=ko sine(0)=1
cos(234)=0.5877852522924732

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