Question

Calcule
d) cos 150° + tg 300° =​

Answer 1

Resposta:

$\frac{ \sqrt{3} }{2}$

Explicação passo-a-passo:

d)

$= \cos(150) - \tan(300)$

$= - \cos(30) - ( - \tan(60) )$

$= - \frac{ \sqrt{3} }{2} - ( - \sqrt{3} )$

$= - \frac{ \sqrt{3} }{2} + \sqrt{3}$

$= \frac{( - \sqrt{3} + 2 \sqrt{3} )}{2}$

$= \frac{ \sqrt{3} }{2}$