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Nilanjan Bhowmick AIR 3, CSIR NET (Earth Science)
Alka gupta Best Answer
see...
mam why u took only case of 0 and 1 . suppose a= 0.5 and b =0.2 then also 0.5x+0.2y can be equal to 0. pls once tell
see qus....in your qus it is given a,b,c,d €{0,1}