If the sum to n terms of a series be 5n 2 + 2n, then second term is

Mathematics · JEE Advanced · NTA ExamsProgression and Series

If the sum to n terms of a series be 5n2 + 2n, then second term is
  1. 15
  2. 17
  3. 10
  4. 5

Answer

(B) 17

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