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Sir,what is the sum of the series in question no. 69?
Dear student You can do this question orally , See the denomntor is going towars bigger value as the sum increases, So the later terms will become 0 .So , Add the first terms. Ans would be option D .Hope this will help Good Luck
use the trick that has bee mentioned that check the options and add initial terms and remove other example one by ine
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