Mathematics, 25.09.2019 10:30 bwheele6791
Find the 16th term of the series 7+2-3-8-13-
Answers: 1
![a_n = \frac{n}{2}[2a_1 + (n - 1)d]](/tpl/images/0261/1774/6be61.png)
![a_{16} = \frac{16}{2}[2(7) + (16 - 1)(-5)]](/tpl/images/0261/1774/9f649.png)
![= 8[14 + (15)(-5)]](/tpl/images/0261/1774/0b6ef.png)
![= 8[14 - 75]](/tpl/images/0261/1774/21a7d.png)
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