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OpenStudy (anonymous):
6 ∑(4i−4) i=3
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OpenStudy (unklerhaukus):
\[=(12-4)+(16-4)+(20-4)+(24-4)\]
OpenStudy (anonymous):
6 ∑(i^2-5) i=3
OpenStudy (unklerhaukus):
how is this hard ?mystic
OpenStudy (anonymous):
=(9-5) + (16-5) + (25 - 5) + (36-5)
OpenStudy (anonymous):
i typed it wrong
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