Class XII

Classify the series. 82  n=0 - 37
  1. arithmetic
  2. geometric
  3. both
  4. neither
Insert three geometric means between 1 and 81.
  1. 3,9,27
  2. 2,4,16
  3. 5,25,125
  4. 3,9,28
How many terms of the arithmetic sequence -3, 2, 7, ... must be added together for the sum of the series to be 116?
  1. n=18
  2. n-17
  3. n=8
  4. n=10
Classify the series. 18  n=0 (n+1)2
  1. arithmetic
  2. geometric
  3. both
  4. neither
Classify the series. 68  n=1 (n+2)3 arithmetic geometric both neither Submit
  1. arithmetic
  2. geometric
  3. both
  4. neither
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