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23 September, 19:43

Find the sum of the first 8 terms in the sequence?

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  1. 23 September, 22:45
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    We need to find the 8 th term nth term is given as an = a1 + (n-1) d n=8, d = - 4 (common difference) a8 = a1 + (8-1) * d a8 = 1+7 * (-4)
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