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9 May, 03:19

What us the exact value of cos (5pi/6) ?

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Answers (2)
  1. 9 May, 06:08
    0
    Exact form:

    -√3/2

    Decimal form:

    -0.866
  2. 9 May, 06:45
    0
    Ans: √3/2

    Step-by-step explanation:

    cos (5pi/6) = COS (-pi/6+pi) = - cos (pi/6)

    cos (5pi/6) = - cos (pi/6) = negative square root of 3/2
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