How does sin 30° compare to sin -30°? a. they are both negative b. sin 30° is positive and sin -30° is negative C. they are both positive d. none of the above

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asked Jul 28, 2021 12.4k views

2 Answers

Mythio · Answer 1 · 2021-08-01T05:30:20+0000

Answer:

b.

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.