Respuesta :
Answer:
b.
Step-by-step explanation:
sin 30 = 1/2
sin (-30) = -1/2.
30 degrees is in quadrant I where the sine is positive and -30 degrees is in quadrant IV where the sine is negative.
Answer:
b.
Step-by-step explanation:
sin 30 = 1/2
sin (-30) = -1/2.
30 degrees is in quadrant I where the sine is positive and -30 degrees is in quadrant IV where the sine is negative.