Question Number 168856 by MWSuSon last updated on 19/Apr/22
$$\mathrm{Re}\left(\mathrm{2}+\mathrm{e}^{\mathrm{i}\alpha\mathrm{t}} \right)? \\ $$
Answered by MJS_new last updated on 19/Apr/22
$$\mathrm{2}+\mathrm{e}^{\mathrm{i}\alpha{t}} =\mathrm{2}+\mathrm{cos}\:\alpha{t}\:+\mathrm{i}\:\mathrm{sin}\:\alpha{t} \\ $$$$\mathrm{easy},\:\mathrm{ain}'\mathrm{t}\:\mathrm{it}? \\ $$
Commented by mokys last updated on 20/Apr/22
$$\mathrm{2}\:+\:{cos}\alpha{t} \\ $$