Question Number 206357 by hardmath last updated on 12/Apr/24
$$\mathrm{Find}: \\ $$$$\mathrm{1}\:+\:\mathrm{cos444}°\:−\:\mathrm{cos84}°\:+\:\mathrm{cot45}°\:=\:? \\ $$
Answered by MM42 last updated on 12/Apr/24
$$\mathrm{2}\:\checkmark \\ $$
Commented by hardmath last updated on 12/Apr/24
$$\mathrm{thank}\:\mathrm{you}\:\mathrm{dear}\:\mathrm{professors} \\ $$
Answered by som(math1967) last updated on 12/Apr/24
$$\mathrm{1}+{cos}\left(\mathrm{360}+\mathrm{84}\right)−{cos}\mathrm{84}+\mathrm{1} \\ $$$$\mathrm{1}+{cos}\mathrm{84}−{cos}\mathrm{84}+\mathrm{1} \\ $$$$=\mathrm{2} \\ $$