Mathematics, 22.10.2019 01:00 orangnevertrust69
The second term in a geometric series is 10, and the seventh term is 10,240. find the sum of the first six terms.
Answers: 2
![a_{7}=a_{1}*r^{6} \\a_{7}=a_{2}*r^{5} \\10,240 = 10*r^{5}\\r=\sqrt[5]{1024} \\r = 4](/tpl/images/0339/7656/1a4ee.png)
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The second term in a geometric series is 10, and the seventh term is 10,240. find the sum of the fir...
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