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Orlov [11]
2 years ago
15

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

Mathematics
1 answer:
MariettaO [177]2 years ago
6 0

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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