Question

For a homework due tomorrow. What is cos 45? What is sin 45?

Answer 1

$\cos(45) = \frac{ \sqrt{2} }{2} = 0.71(2d.p) \\ \\ \sin(45) = \frac{ \sqrt{2} }{2} = 0.71(2d.p)$

Answer 2

They are the same :)

0.7071