GPSC Class 1 - 2 2016 Paper 1

Question 188
EASYCorrect: +1Incorrect: -1

સાદુરૂપ આપો : b[b(a+b){b(ba+b)}+2a]b-[b-(a+b)-\{b-(b-a+b)\}+2 a]b[b(a+b){b(ba+b)}+2a]​​

    a
    0
    b
    a
    c
    2a
    d
    -a