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" 25."cos24^(@)+cos55^(@)+cos125^(@)+cos...

" 25."cos24^(@)+cos55^(@)+cos125^(@)+cos204^(@)=

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Prove that cos24^(@) + cos 55^(@) + cos125^(@) +cos204^(@) + cos300^(@) = 1/2

Evaluate : cos24^(@)+cos55^(@)+cos125^(@)+cos204^(@)+cos300^(@) .

cos24^(@)+cos55^(@)+cos125^(@)+cos204^(@)=1)-1quad 2)0 33)14)2

Find the values: (v) cos 24^(@) + cos 55^(@) + cos 125^(@)+ cos 204^(@) + cos 300^(@) .

Prove that cos 24^(@)+cos 55^(@)+cos 125^(@)+cos 204^(@)+cos 300^(@)=1/2

cos 24^(@) cos 48^(@) cos 96^(@) cos 192^(@) =

cos24^(@)+cos55^(@)+cos125^(@)+cos204^(@)+cos300^(@)=?

cos175^(@)+cos65^(@)+cos55^(@)=?

cos 25^(@) - cos65^(@) =