Question Number 89032 by M±th+et£s last updated on 14/Apr/20
$${find}\:{by}\:{using}\:{de}\:{moivre}'{s}\:{formula} \\ $$$${cos}\left(\mathrm{2}°\right)=? \\ $$
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Question Number 89032 by M±th+et£s last updated on 14/Apr/20 | ||
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$${find}\:{by}\:{using}\:{de}\:{moivre}'{s}\:{formula} \\ $$$${cos}\left(\mathrm{2}°\right)=? \\ $$ | ||