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Assertion(A): If Sn is the sum of the first n terms of an AP, then its nth term an is given by an = Sn – Sn – 1 Reason (R): The 10th term of the A.P. 5, 8, 11, 14, ………………. is 35.
Assertion (A): In an AP, Sn = n² + n then a20 = 40 Reason (R): In an AP d = an – an-1
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