Question

cos 120° + sen 330°- tg 225°- cos 270° ?

Answer 1

cos 120° + sen 330°- tg 225°- cos 270

-cos 60 - sen 30°- tg 45°- 0

-1/2 - 1/2 - 1

-2 ✓

Answer 2

Oie, Td Bom?!

$= \cos(120°) + \sin(330°) - \tan(225°) - \cos(270°)$

$= - \frac{1}{2} - \frac{1}{2} - 1 - 0$

$= - \frac{1}{2} - \frac{1}{2} - 1$

$= \frac{ - 1 - 1}{2} - 1$

$= \frac{ - 2}{ 2} - 1$

$= - 1 - 1$

$= - 2$

Att. Makaveli1996