Question

O valor de sen pi/4 + cos pi/4 + cos 2pi

Answer 1

Resposta

$sen~\left (\frac{\pi}{4}\right )+ cos ~\left (\frac{\pi}{4}\right )+cos~2\pi=\frac{\sqrt{2}}{2}+\frac{\sqrt{2}}{2}+1=\sqrt{2}+1$