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  1. 1904 x 1904 = ?

    2. A.

    3654316
    B.

    3632646
    C.

    3625216
    D.

    3623436
    E.

    None of these

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    Answer : Option C

    Explanation :

        
    1904 x 1904    = (1904)2
    = (1900 + 4)2
    = (1900)2 + (4)2 + (2 x 1900 x 4)
    = 3610000 + 16 + 15200.
    = 3625216.

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