Question

c) Cos 585° * a)√2/2 b)- √2/2 c)1/2 d)√3/2

Answer 1

Resposta:

ITEM (B)

Explicação passo-a-passo:

$\cos(585°)$

$\cos(225° + 360°)$

$\cos(225°)$

$- \frac{ \sqrt{2} }{2}$