Awesomegirl2003
Awesomegirl2003 Awesomegirl2003
  • 14-05-2020
  • Mathematics
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Which formula(s) can be used to find the nth partial sum of an arithmetic sequence or the sum of the first n terms of the arithmetic series?

Which formulas can be used to find the nth partial sum of an arithmetic sequence or the sum of the first n terms of the arithmetic series class=

Respuesta :

adefunkeadewole adefunkeadewole
  • 20-05-2020

Answer:

First Option : Sₙ= n/2(a₁ + aₙ)

Step-by-step explanation:

The nth partial sum of an arithmetic sequence or the sum of the first n terms of the arithmetic series can be defined as the sum of a finite number of term in an arithmetic sequence.

It is calculated using the formula:

Sₙ= n/2(a₁ + aₙ)

Where :

a₁ = First term

aₙ = last term

n = number of terms

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