If we know the formula for the partial sums of a sequence, we can find a formula for the nth term in the sequence. The partial sum of a sequence gives as the sum of the first n terms in the sequence. If you're seeing this message, it means we're having trouble loading external

This is the Partial Sum of the first 4 terms of that sequence: 2+4+6+8 = 20. A Sequence is a set of things (usually numbers) that are in order. A Partial Sum is the sum of part of the sequence.

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follow these steps: Find a1 by plugging in 1 for n. Find a2 by plugging in 2 for n. Divide a2 by a1 to find r. For this example, r = –3/9 = –1/3. Notice that this value is the same as

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