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Sequences and Series

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Question 11

An arithmetic series is defined by its first term p p\,p and its common difference qqq.

Prove that the sum of the first n n\,n terms of this series is

12n[2p+(n−1)q] \frac{1}{2}n[2p + (n-1)q] 21​n[2p+(n−1)q]
[4]

Sequences and Series Questions

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