Subject

    গাণিতিক যুক্তি

    Topic

    সরলীকরণ

    2a - b - [2b - {3c - (a - 3b + 3c)}] এর সরলমান কত?

    ক)
    a
    খ)
    a - b
    গ)
    a + b
    ঘ)
    b

    Explanation

    2a - b - [2b - {3c - (a - 3b + 3c)}] = 2a - b - [2b - {3c - a + 3b - 3c}] = 2a - b - [2b - 3c + a - 3b + 3c] = 2a - b - [a - b] = 2a - b - a + b = a

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