Mathematics, 13.10.2019 23:30 shelbybibb99
What is the sum of the arithmetic sequence 3, 9, if there are 36 terms?
Answers: 3
![\frac{n}{2}[2a(1) + (n-1)d]](/tpl/images/0316/9936/1c3b2.png)
![18[6 + (35*6)]](/tpl/images/0316/9936/b5dd2.png)
![18[216]](/tpl/images/0316/9936/a1f34.png)
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What is the sum of the arithmetic sequence 3, 9, if there are 36 terms?...
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