Question Number 58 by abyaya last updated on 25/Jan/15
$${sin}\mathrm{450}+{cos}\mathrm{450} \\ $$
Answered by kader last updated on 17/Nov/14
$$\mathrm{sin}\:\left(\mathrm{360}+\mathrm{90}\right)+\mathrm{cos}\:\left(\mathrm{360}+\mathrm{90}\right) \\ $$$$\mathrm{sin}\:\mathrm{90}+\mathrm{cos}\:\mathrm{90} \\ $$$$\mathrm{1}+\mathrm{0}=\mathrm{1} \\ $$