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gagan sir fan club
7y ago
what is the sum of the first 13 terms of an arithmetic progression if the 5th term is 1 and the 8th term is 17?
3
Karthikeyan M 7y ago
51
Om Dhiraj 7y ago
130?
Om Dhiraj 7y ago
sorry it's 455/3 actually. with a = -61/3 and d =16/3
