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Mathematics, 17.12.2020 14:00 alexandroperez13

Let Sn, be the sum of the first n terms of the arithmetic series 2+4+6+ (a)
Find
(i)
S4
(ii) S100

10 100
How do you work it out though?

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Let Sn, be the sum of the first n terms of the arithmetic series 2+4+6+ (a)
Find
(i)
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