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OpenStudy (anonymous):
find the sum: \[\sum_{n=51}^{100}7n\]
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OpenStudy (anonymous):
how would i solve this?
OpenStudy (anonymous):
OpenStudy (anonymous):
Not an infinite series.
OpenStudy (anonymous):
but what if n=51
OpenStudy (anonymous):
Sorry messed up it is 26425.
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OpenStudy (anonymous):
Yep, 7 * 3775 = 26425.
OpenStudy (anonymous):
how did you get that?????
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