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08-06-2017
Mathematics

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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°

Respuesta :

11-06-2017

Sin x = -1 at 90 degrees, 270 degrees, - 90 degrees, and - 270 degrees.
Letter A

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