Question #20640
1 Answer
Dec 19, 2017
Explanation:
Find sin x by the trig identity:
(2x is in quadrant 4, so, x is in Quadrant 3, then sin x < 0)
Check by calculator
Find sin x by the trig identity:
(2x is in quadrant 4, so, x is in Quadrant 3, then sin x < 0)
Check by calculator