Question

Resolva as expreções trigonométricas:

$tg 2\pi +2sen\frac{\pi}{4} +3 cos 2\pi$

Answer 1

$\tan(2\pi) = \tan(360) = 0 \\ 2 \sin( \frac{\pi}{4} ) = 2 \times \frac{ \sqrt{2} }{2} = \sqrt{2 } \\ 3 \cos(2\pi) = 3 \times 1 = 3 \\ 0 + \sqrt{2} + 3 = 3 + \sqrt{2}$