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OpenStudy (anonymous):
Math Analysis: Find the sum of the arithmetic series. The sum of the first 210 positive even integers.
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OpenStudy (campbell_st):
this is an arithmetic series a = 2 d = 2 and n = 210 \[s _{n} = \frac{n}{2}[2a + (n -1)d]\] substitute and evaluate
OpenStudy (anonymous):
wow, thx! :3
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