tell me the all formula related to arithmetic progression
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tell me the all formula related to arithmetic progression
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here tn is the term at n'th position, a is the first term,d is the common difference, Sn is the sum of given number of terms , l is the last term of an AP
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here's your answer
1. an = a + (n-1)d
2. sn = n/2 (2a+(n-1)d)
or
sn =n/2 (a + an)
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