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24 November, 05:27

A right triangle has an angle with a sine of 0.6. What is the cosine of the angle?

A) 0.36

B) 0.4

C) 0.64

D) 0.8

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Answers (1)
  1. 24 November, 05:37
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    D 0.8

    sin^2 (x) + cos^2 (x) - 1

    if x=0.6

    then 0.6^2+cos (x) = 1

    cos^2=1-0.36=0.64

    cos (x) = ±0.8
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