Which equation should be used to calculate the 43rd partial sum for the arithmetic sequence.

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02-02-2022
Mathematics

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Which equation should be used to calculate the 43rd partial sum for the arithmetic sequence.

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Claire33p7xpgfidn Claire33p7xpgfidn · Answer 1 · 2022-02-02T08:27:33-05:00

Claire33p7xpgfidn Claire33p7xpgfidn

02-02-2022

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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