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Discussion :: Trigonometry

  1.  If cos 55° and sin 55° = 0.8 each then answer of 3 cos 125° + 5 sin 125° is

    2. A.

    0.6
    B.

    1.6
    C.

    2.3
    D.

    2.5

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    Answer : Option B

    Explanation :

    1.6

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