Find the common difference of an A.P. in which sum of any number o | Filo
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Class 11

Math

Algebra

Sequences and Series

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Find the common difference of an A.P. in which sum of any number of terms is always three times the squared number of these terms. 

  1. 6
Correct Answer: Option(a)
Solution:

   by   given   condition

Putting   

The   series   is   
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