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OpenStudy (anonymous):
find the sum of all even numbers from 1 to 1000.
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OpenStudy (solomonzelman):
all terms are from 2 to 1000 (and are even) there are 500 terms, and (1000+2)/2 is the average term
OpenStudy (solomonzelman):
Sum = 500 * 501
OpenStudy (anonymous):
Thanks SolomonZelman
OpenStudy (solomonzelman):
yw
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