Mathematics, 27.06.2019 07:30, mariela78
Calculate s26 for the arithmetic sequence in which a14=4.1 and the common difference is d=1.7
Answers: 1
from the formula 
![s_{26}=\frac{26}{2}[2(-18)+(26-1)(1.7)]](/tpl/images/0022/5025/eccaa.png)
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Calculate s26 for the arithmetic sequence in which a14=4.1 and the common difference is d=1.7...
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