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OpenStudy (anonymous):
Given the sequence: {2, 8, 32, 128, 512…}, S12 = ???
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OpenStudy (anonymous):
S12=2(4^12-1)/4-1 which simplifies to S12=2(1677215)/3. You must solve from here :)
OpenStudy (anonymous):
so it's 1118143
OpenStudy (anonymous):
yeppp
OpenStudy (anonymous):
OH wait!!! it's 11184810!!
OpenStudy (anonymous):
i did the (4^12) part wrong sorry
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OpenStudy (anonymous):
what's it's then
OpenStudy (anonymous):
11,184,810
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