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OpenStudy (anonymous):
I got 10000 something. Sigma solution, pic.
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OpenStudy (anonymous):
15th partial sum of E(i=1) 12i-7 |dw:1352552098499:dw|
OpenStudy (anonymous):
a_1= 5 I got cuz 12(1)-7=5, a_15= 173 I got 12(15)-7 n=169 then (n/2)(a^1+a^n) I got 10,027.3333 but my options are a)178 b)2,670 c)1,246 d) 1,335
OpenStudy (anonymous):
Its d
OpenStudy (anonymous):
alright i appreciate it, i guess
OpenStudy (anonymous):
can you tell me if these are correct?
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OpenStudy (anonymous):
|dw:1352552538940:dw|
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