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			 30 points
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Alka gupta Best Answer
see
similarly in d we have n so how can the limit point be zero
but (-1)n gives two values 1 and -1 that means not unique limit point
dear ....(-1)^n multiply by 1/n ...so limit point is 0
ok mam got it but what about d option we have only n
I take subsequence 1/n....which converge to zero