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Discussion :: Simplification

  1. \( \frac { (469+174)^2-(469-174)^2 } { (469*174) } =?\)

    2. A.

    2
    B.

    4
    C.

    295
    D.

    643

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    Answer : Option B

    Explanation :

    Given exp. =\(\frac {(a+b)^2-(a-b)^2 } { ab } \)

                   =\(\frac { 4ab } {ab }\)

                     =4 (where a = 469, b = 174.)

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