Find the value of X if \(cos x = \frac{5}{8}\) for \(0^o\le X\le 180^o\)

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Mathematics WAEC 1998

Find the value of X if \(cos x = \frac{5}{8}\) for \(0^o\le X\le 180^o\)

  • 141.3o
  • 128.7o
  • 51.3o checkmark
  • 48.7o
  • 38.7o

The correct answer is: C

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