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Nilanjan Bhowmick AIR 3, CSIR NET (Earth Science)
Priyadarshan Choursiya
see attachment
I don't understand. please explain again
here you have to go from options. first you assume that (a) option is true, so the function given to you is the solution. put that into given DE. if you got same DE as given then it will be solution. otherwise it is not
in option (a) u see that you got same DE but in b you have extra -ve sign so it is not solution