If the sum of the first n terms of an A.P. is given by the equatio | Filo
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Sequences and Series

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If the sum of the first n terms of an A.P. is given by the equation , then what is the first term and second term?

  1. and
  2. and
  3. and
  4. and
Correct Answer: Option(a)
Solution: Given,
                     .......( 1 )
          .......( 2 )
             .......( 3 )

and   
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