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Mathematics 16 Online
OpenStudy (anonymous):

For what x-value(s) does sin(x) = -1? A. -270°, -90°, 90°, and 270° B. -270°, -90°, 0°, 90°, and 270° C. -90 and 270° D. -270° and 90°

OpenStudy (kira_yamato):

C

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