Subject

    গাণিতিক যুক্তি

    Topic

    সরলীকরণ

    a- [a-{a-(a-1)}] = কত?

    ক)
    1
    খ)
    -1
    গ)
    a-1
    ঘ)
    a+1

    Explanation

    a- [a-{a-(a-1)] =a- [a-{a-a+1}] =a- [a-1] =a-a+1 =1

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