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Discussion :: Trigonometry

  1.  If cos 55° and sin 55° = 0.8 each then answer of cos 125° + 5 sin 55° is

    2. A.

    0.8
    B.

    2.4
    C.

    2.8
    D.

    3.2

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    Answer : Option B

    Explanation :

    2.4

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