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Discussion :: Trigonometry

  1.  Solve for x in the equation: arc tan (x + 1) + arc tan (x – 1) = arc tan (12)

    2. A.

    1.20
    B.

    1.25
    C.

    1.34
    D.

    1.5

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    Answer : Option C

    Explanation :

    1.34

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