Question

Utilize o ciclo trigonometrico responda

A)sen30°= B)cos120°=

C)225°= D)cos210°=

F)sen315°= F)270°=​

Answer 1

A)sen30°= 1/2

B)cos120°= -cos(180-120)=-cos60= -1/2

C)225°= (Sen=cos=-cos45= -√2/2

D)cos210°=-cos(210-180)=-cos30=-√3/2

E)sen315°= -sen(360-315)=-sen45=-√2/2

F)270°= sen270? = -1