Mathematics, 28.02.2021 08:30 bncm766
The sum of the first 50 terms of 6,10,14 to the nearest integer.
Answers: 3
![S_n = \frac{n}{2}[2a + (n-1)*d]](/tpl/images/1155/0026/6262c.png)
![S_{50} = \frac{50}{2}[2*6 + (50-1)*4]](/tpl/images/1155/0026/c4a20.png)
![S_{50} = 25*[12 + 49*4]](/tpl/images/1155/0026/50923.png)
![S_{50} = 25*[12 + 196]](/tpl/images/1155/0026/39c05.png)
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The sum of the first 50 terms of 6,10,14 to the nearest integer....
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