Can anyone explain to me what this is asking/how to do this? i think it's for the summation formula [tex]s_{n} =n(rac{a_{1}+a_{n} }{2})[/tex] but if i'm given a1, an, and n, what are the other numbers for?

D 3500Step-by-step explanation:This question is asking for the sum of all the terms in an arithmetic...

Mathematics, 16.12.2019 09:31 Ashthegreat

Can anyone explain to me what this is asking/how to do this? i think it's for the summation formula $s_{n} =n(\frac{a_{1}+a_{n} }{2})$ but if i'm given a1, an, and n, what are the other numbers for?

Can anyone explain to me what this is asking/how to do this? i think it's for the summation formula

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Can anyone explain to me what this is asking/how to do this? i think it's for the summation formula but if i'm given a1, an, and n, what are the other numbers for?

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Can anyone explain to me what this is asking/how to do this? i think it's for the summation formula $s_{n} =n(\frac{a_{1}+a_{n} }{2})$ but if i'm given a1, an, and n, what are the other numbers for?