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27 October, 05:55

What is the approximate value of theta if cos theta = 8/15

A. 58

B. 32

C. 28

D. 62

E. 48

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Answers (1)
  1. 27 October, 06:13
    0
    Cos (Ф) = 5/12

    arcos (5/12) = cos⁻¹ (5/12) = Ф

    Then cos⁻¹ (5/12) = 57.769 and Ф = 58
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