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Find y if sin y = cos 48°

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Mathematics NECO 2008

Find y if sin y = cos 48°

  • 21°
  • 24°
  • 42° checkmark
  • 48°
  • 102°

The correct answer is: C

Explanation

Cos 48º = 0.6691

Then Sin y = 0.6691 (since sin y = cos 48º)

y = Sin\(^{-1}\) 0.6691 = 42º

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