Mathematics

The value of sin 210° is

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})
Correct Answer: Option A
Explanation

sin 210 = – sin (210 – 180) = – sin 30

= (-frac{1}{2})