arithmetic sequences/series

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4 Terms

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arithmetic sequence

sequence of numbers that increase/decrease by same amount each time

2
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arithmetic series

where terms are added together

3
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arithmetic SEQUENCE equation

a + (n-1)d

a = starting term

d = common difference

n = number of terms

4
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arithmetic SERIES formula

Sn = n/2 [2a+(n-1)d]

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