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MHT CET20192 May 2019Morning ShiftMathematicsSequences and SeriesActual

For a G.P., if S n = 4 n - 3 n 3 n , then, t 2 = ________

Options

  1. A1 9
  2. B2 9
  3. C7 9
  4. D4 9

Correct answer

D. 4 9

Step-by-step solution

Given S n = 4 n - 3 n 3 n T n = S n - S n - 1 T 2 = S 2 - S 1 = 4 2 - 3 2 3 2 - 4 - 3 3 = 7 9 - 1 3 ⇒ 4 9

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