Subject

    Quantitative Aptitude

    Topic

    Fraction & Decimal

    The square root of (7+3√5)(7-3√5) is:

    ক)
    √5
    খ)
    4
    গ)
    2
    ঘ)
    3√5

    Explanation

    (7+3√5)(7-3√5) = 7 2 - (3√5) 2 = 49 - 45 = 4 So, the Square root is √4 = 2

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