Math, asked by msjane, 5 months ago

Need your help URGENT.
If Sn=-80, a1=10, an=-26, What is the value of n?

Answers

Answered by nikunjgupta23
0

remember jesus is the answer

Answered by ritimaurya242
2

Answer:

it's for example

Step-by-step explanation:

Sn = n/2 (a1 + an)

360 = n/2(42 - 26)

360 = 8n

n = 45

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