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30 March, 14:47

Which of the following best represents the value of arcsec 1.6 in degrees, using the standard restricted domain?

39°

51°

78°

128°

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Answers (1)
  1. 30 March, 15:10
    0
    Sec θ=1/sin θ

    From the inormation:

    1/sin θ=1.6

    hence:

    sin θ=1/1.6

    sin θ=0.625

    thus

    θ=arc sin 0.625

    θ=38.68°~39°
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