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  1. Home
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  3. /Miscellaneous
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Miscellaneous·2014·Easy

What is the value of cos 36°?

What is the value of cos 36°?

Options

  1. a.

    (√5 - 1)/4

    Correct answer
  2. b.

    (√5 + 1)/4

  3. c.

    (√10 + 2√5)/4

  4. d.

    (√10 - 2√5)/4

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