Question

Encontre o seno, cosseno, tangente desse angulo
11π/6

Answer 1

11π/6 = 330 graus , logo = -30 graus , assim temos cos -30 = cos 30 ,
 e sen -30 = -sen 30 , cos = raiz(3)/2 , sen = -1/2 , tg = sen/cos , -1/2/raiz(3)/2
tg -30 = -1/raiz(3)