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Nilanjan Bhowmick AIR 3, CSIR NET (Earth Science)
Deepak singh 1 Best Answer
it is based on type of question... in some questions both are same , but in some its different..
sir..means its not rigid the value of x and y they may be reverse but ans. be correct
yes , in some questions reverse value of x and y can be considered as correct answer
okk sir..