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If sin 30° = 0.5, what is the cosine of its complement?

If sin 30° = 0.5, what is the cosine of its complement?
  • A.
    -0.866
  • B.
    -0.5
  • C.
    0.0.5
  • D.
    0.866
  • E.
    1
Correct Answer: Option C
Explanation

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