Question
Tue January 22, 2013 By:
  1. for example the given question : sum the series to n terms: 

how do we select the Tn of the nth term of a series ?

Expert Reply
Tue January 22, 2013
The nth term of a given series can be calculated by analising the pattern.
For example in the series 3*8+6*11+9*14+................, we have:
the first number in each term is a multiple of 3, so in nth term it will be 3n.
and the second number in each term is 5 more than the multiple of 3, so in nth term it will be 3n + 5.
 
Hence, the nth term of this series will be 3n * (3n + 5).
 
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