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Find-1-cos444-cos84-cot45-




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

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