Answer:
sin 306°= -0.8090
cos 306°= 0.5878
tan 306°= -1.3764
Explanation:
sin 54° = 0.8090
cos 54°= 0.5878
tan 54° = 1.3764
As 306° = 360° - 54°, the trigonometric funcions absolute values are the same for both, we need to check the signs.
As 306° is on the 4th quadrant, we have
sin 306° negative
cos 306° positive
tan 306° negative, this way
sin 306°= -0.8090
cos 306°= 0.5878
tan 306°= -1.3764