The n th term of a GP is 128 and the sum of its n terms is 255. If its common ratio is 2…

Mathematics · JEE Main · NTA ExamsProgression and Series

The nth term of a GP is 128 and the sum of its n terms is 255. If its common ratio is 2 then its first term is
  1. 1
  2. 3
  3. 8
  4. none of these

Answer

(A) 1

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