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Nilanjan Bhowmick AIR 3, CSIR NET (Earth Science)
Deepak singh 1
Refer attached option d is correct
doubt
yes , you can disprove option a by this method . But not option b,c,d .
doubt
why my solution is incorrect?
its possible ..
read options carefully again .
I do not understand what am I missing? please clarify.
doubt
yes , its determinant