Let a 1 , a 2 , a 3 , .... be an arithmetic progression with a 1 = 7 and common…

Mathematics · JEE Advanced · NTA ExamsProgression and Series

Let a1, a2, a3, .... be an arithmetic progression with a1 = 7
and common difference 8 . Let T1, T2, T3, .... be such that T1 = 3 and Tn + 1Tn = an for n ≥ 1 . Then, which of the following is/are true?
  1. T20 = 1604
  2. T30 = 3454

Answer

(B)

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