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i didn't solved it dear .. there 's a trick .. if sn of an ap.............is =An^2 + Bn then .....d common difference is......... 2 * coefficient of n^2 cheers ...........do rate ma reply.......
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don't walk as if u rule d world walk as if u dont care who rules d world -this is knw as attitude B who u r and say wat u feel ...... coz those who mind don't matter ........ and those who matter dont mind ......... :) |
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