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OpenStudy (anonymous):
Write the sum using summation notation, assuming the suggested pattern continues. -8 - 3 + 2 + 7 + ... + 67
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OpenStudy (anonymous):
@jim_thompson5910 @nincompoop @zepdrix
OpenStudy (anonymous):
With the help from Mathematica 9: \[\sum _{n=-2}^{13} (5 n+2)=472 \]
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