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. \(\frac{\sqrt{2}}{2}\)
Correct Answer: A. \(-\frac{1}{2}\)
Explanation
sin 210 = - sin (210 - 180) = - sin 30
= -1/2
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