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27 November, 16:26

Find the value of y round your answer to the nearest tenth cos y y=8/13

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Answers (2)
  1. 27 November, 18:07
    0
    52.0

    Step-by-step explanation:

    To solve this, we will perform the inverse cosine:

    cos y = 8/13

    cos⁻¹ (cos y) = cos⁻¹ (8/13)

    y = 52.0
  2. 27 November, 19:48
    0
    8/13 = 0.6153

    y = cos-1 (0.6153)

    y = 52.0

    I'm not totally sure if this is what you mean or if this is.

    y = cos (8/13) = 0.9999 which to the nearest tenth is 1.0
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