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The value of sin 210° is

Mathematics
WAEC 1992

The value of sin 210° is

  • A. \(-\frac{1}{2}\)
  • B. \(-\frac{\sqrt{3}}{2}\)
  • C. \(\frac{1}{2}\)
  • D. \(\frac{\sqrt{2}}{2}\)
  • E. \(\frac{\sqrt{3}}{2}\)
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Correct Answer: Option A
Explanation

sin 210 = - sin (210 - 180) = - sin 30

= \(-\frac{1}{2}\)

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