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If Sn=-80, a1=10, an=-26 what is the value of n?
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If Sn=-80, a1=10, an=-26 what is the value of n?

User Muhamad
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1 Answer

2 votes

Answer:

So a would times 1 and =10 so it needs to be 1x10 so a is 10 and axn is -26 so n needs to be =2.6

Explanation:

User Djaszczurowski
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